21020122230232 has 32 divisors (see below), whose sum is σ = 39657898015200. Its totient is φ = 10444877632000.

The previous prime is 21020122230223. The next prime is 21020122230241. The reversal of 21020122230232 is 23203222102012.

It is an interprime number because it is at equal distance from previous prime (21020122230223) and next prime (21020122230241).

It is a super-2 number, since 2×21020122230232² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11316244 + ... + 13042147.

It is an arithmetic number, because the mean of its divisors is an integer number (1239309312975).

Almost surely, 2^{21020122230232} is an apocalyptic number.

It is an amenable number.

21020122230232 is a deficient number, since it is larger than the sum of its proper divisors (18637775784968).

21020122230232 is a wasteful number, since it uses less digits than its factorization.

21020122230232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24359067 (or 24359063 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 21020122230232 its reverse (23203222102012), we get a palindrome (44223344332244).

The spelling of 21020122230232 in words is "twenty-one trillion, twenty billion, one hundred twenty-two million, two hundred thirty thousand, two hundred thirty-two".