102211023421 has 32 divisors (see below), whose sum is σ = 115705699200. Its totient is φ = 89629182720.

The previous prime is 102211023413. The next prime is 102211023451. The reversal of 102211023421 is 124320112201.

It is a cyclic number.

It is not a de Polignac number, because 102211023421 - 2³ = 102211023413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102211023451) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27555715 + ... + 27559423.

It is an arithmetic number, because the mean of its divisors is an integer number (3615803100).

Almost surely, 2^102211023421 is an apocalyptic number.

It is an amenable number.

102211023421 is a deficient number, since it is larger than the sum of its proper divisors (13494675779).

102211023421 is a wasteful number, since it uses less digits than its factorization.

102211023421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4909.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 102211023421 its reverse (124320112201), we get a palindrome (226531135622).

The spelling of 102211023421 in words is "one hundred two billion, two hundred eleven million, twenty-three thousand, four hundred twenty-one".