21210022132030 has 16 divisors (see below), whose sum is σ = 38178531562464. Its totient is φ = 8483899580640.

The previous prime is 21210022132021. The next prime is 21210022132031. The reversal of 21210022132030 is 3023122001212.

It is a junction number, because it is equal to n+sod(n) for n = 21210022131989 and 21210022132007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21210022132031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12841461 + ... + 14398720.

It is an arithmetic number, because the mean of its divisors is an integer number (2386158222654).

Almost surely, 2^{21210022132030} is an apocalyptic number.

21210022132030 is a deficient number, since it is larger than the sum of its proper divisors (16968509430434).

21210022132030 is a wasteful number, since it uses less digits than its factorization.

21210022132030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27318051.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21210022132030 its reverse (3023122001212), we get a palindrome (24233144133242).

The spelling of 21210022132030 in words is "twenty-one trillion, two hundred ten billion, twenty-two million, one hundred thirty-two thousand, thirty".