32121010321212 has 48 divisors (see below), whose sum is σ = 76179055478400. Its totient is φ = 10531290932160.

The previous prime is 32121010321199. The next prime is 32121010321217. The reversal of 32121010321212 is 21212301012123.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32121010321217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44129239 + ... + 44851217.

It is an arithmetic number, because the mean of its divisors is an integer number (1587063655800).

Almost surely, 2^{32121010321212} is an apocalyptic number.

It is an amenable number.

32121010321212 is an abundant number, since it is smaller than the sum of its proper divisors (44058045157188).

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

32121010321212 is a wasteful number, since it uses less digits than its factorization.

32121010321212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782826 (or 782824 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 32121010321212 its reverse (21212301012123), we get a palindrome (53333311333335).

The spelling of 32121010321212 in words is "thirty-two trillion, one hundred twenty-one billion, ten million, three hundred twenty-one thousand, two hundred twelve".