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122021429 is a prime number
BaseRepresentation
bin1110100010111…
…10011000110101
322111121022221012
413101132120311
5222214141204
620035202005
73011110415
oct721363065
9274538835
10122021429
1162972562
1234a46305
131c38403a
14122c4645
15aaa476e
hex745e635

122021429 has 2 divisors, whose sum is σ = 122021430. Its totient is φ = 122021428.

The previous prime is 122021413. The next prime is 122021437. The reversal of 122021429 is 924120221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117137329 + 4884100 = 10823^2 + 2210^2 .

It is a cyclic number.

It is not a de Polignac number, because 122021429 - 24 = 122021413 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122021479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61010714 + 61010715.

It is an arithmetic number, because the mean of its divisors is an integer number (61010715).

Almost surely, 2122021429 is an apocalyptic number.

It is an amenable number.

122021429 is a deficient number, since it is larger than the sum of its proper divisors (1).

122021429 is an equidigital number, since it uses as much as digits as its factorization.

122021429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 122021429 is about 11046.3310198455. The cubic root of 122021429 is about 495.9966031787.

It can be divided in two parts, 12202 and 1429, that added together give a palindrome (13631).

The spelling of 122021429 in words is "one hundred twenty-two million, twenty-one thousand, four hundred twenty-nine".