21032210012 has 48 divisors (see below), whose sum is σ = 41281198560. Its totient is φ = 9293030400.

The previous prime is 21032209987. The next prime is 21032210027. The reversal of 21032210012 is 21001223012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 478664 + ... + 520752.

It is an arithmetic number, because the mean of its divisors is an integer number (860024970).

Almost surely, 2^21032210012 is an apocalyptic number.

21032210012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21032210012 is a deficient number, since it is larger than the sum of its proper divisors (20248988548).

21032210012 is a wasteful number, since it uses less digits than its factorization.

21032210012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42422 (or 42420 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 21032210012 its reverse (21001223012), we get a palindrome (42033433024).

The spelling of 21032210012 in words is "twenty-one billion, thirty-two million, two hundred ten thousand, twelve".