21032102212 has 96 divisors (see below), whose sum is σ = 42872256000. Its totient is φ = 8927677440.

The previous prime is 21032102159. The next prime is 21032102219. The reversal of 21032102212 is 21220123012.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (21032102219) 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, 33977239 + ... + 33977857.

It is an arithmetic number, because the mean of its divisors is an integer number (446586000).

Almost surely, 2^21032102212 is an apocalyptic number.

21032102212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21032102212 is an abundant number, since it is smaller than the sum of its proper divisors (21840153788).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21032102212 is a wasteful number, since it uses less digits than its factorization.

21032102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1169 (or 1167 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21032102212 its reverse (21220123012), we get a palindrome (42252225224).

The spelling of 21032102212 in words is "twenty-one billion, thirty-two million, one hundred two thousand, two hundred twelve".