20222101 has 2 divisors, whose sum is σ = 20222102. Its totient is φ = 20222100.

The previous prime is 20222087. The next prime is 20222113. The reversal of 20222101 is 10122202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20160100 + 62001 = 4490^2 + 249^2 .

It is a cyclic number.

It is not a de Polignac number, because 20222101 - 2²¹ = 18124949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20222161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111050 + 10111051.

It is an arithmetic number, because the mean of its divisors is an integer number (10111051).

Almost surely, 2^20222101 is an apocalyptic number.

It is an amenable number.

20222101 is a deficient number, since it is larger than the sum of its proper divisors (1).

20222101 is an equidigital number, since it uses as much as digits as its factorization.

20222101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 20222101 is about 4496.8990426737. The cubic root of 20222101 is about 272.4428564632.

Adding to 20222101 its reverse (10122202), we get a palindrome (30344303).

The spelling of 20222101 in words is "twenty million, two hundred twenty-two thousand, one hundred one".