21210332231122 has 16 divisors (see below), whose sum is σ = 32058594371232. Its totient is φ = 10524135267360.

The previous prime is 21210332231119. The next prime is 21210332231173. The reversal of 21210332231122 is 22113223301212.

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, 61192033 + ... + 61537675.

It is an arithmetic number, because the mean of its divisors is an integer number (2003662148202).

Almost surely, 2^{21210332231122} is an apocalyptic number.

21210332231122 is a deficient number, since it is larger than the sum of its proper divisors (10848262140110).

21210332231122 is a wasteful number, since it uses less digits than its factorization.

21210332231122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579993.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 21210332231122 its reverse (22113223301212), we get a palindrome (43323555532334).

The spelling of 21210332231122 in words is "twenty-one trillion, two hundred ten billion, three hundred thirty-two million, two hundred thirty-one thousand, one hundred twenty-two".