2210121943 has 2 divisors, whose sum is σ = 2210121944. Its totient is φ = 2210121942.

The previous prime is 2210121931. The next prime is 2210121973. The reversal of 2210121943 is 3491210122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2210121943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2210121973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1105060971 + 1105060972.

It is an arithmetic number, because the mean of its divisors is an integer number (1105060972).

Almost surely, 2^2210121943 is an apocalyptic number.

2210121943 is a deficient number, since it is larger than the sum of its proper divisors (1).

2210121943 is an equidigital number, since it uses as much as digits as its factorization.

2210121943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2210121943 is about 47011.9340487072. The cubic root of 2210121943 is about 1302.5830187419.

It can be divided in two parts, 22101 and 21943, that added together give a palindrome (44044).

The spelling of 2210121943 in words is "two billion, two hundred ten million, one hundred twenty-one thousand, nine hundred forty-three".