102212121943 has 2 divisors, whose sum is σ = 102212121944. Its totient is φ = 102212121942.

The previous prime is 102212121929. The next prime is 102212121983. The reversal of 102212121943 is 349121212201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102212121943 - 2⁵ = 102212121911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102212121983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51106060971 + 51106060972.

It is an arithmetic number, because the mean of its divisors is an integer number (51106060972).

Almost surely, 2^102212121943 is an apocalyptic number.

102212121943 is a deficient number, since it is larger than the sum of its proper divisors (1).

102212121943 is an equidigital number, since it uses as much as digits as its factorization.

102212121943 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 28.

The spelling of 102212121943 in words is "one hundred two billion, two hundred twelve million, one hundred twenty-one thousand, nine hundred forty-three".