31220102000212 has 12 divisors (see below), whose sum is σ = 54635832780480. Its totient is φ = 15609864062936.

The previous prime is 31220102000209. The next prime is 31220102000257. The reversal of 31220102000212 is 21200020102213.

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 3 ways as a sum of consecutive naturals, for example, 46358188 + ... + 47026819.

It is an arithmetic number, because the mean of its divisors is an integer number (4552986065040).

Almost surely, 2^{31220102000212} is an apocalyptic number.

It is an amenable number.

31220102000212 is a deficient number, since it is larger than the sum of its proper divisors (23415730780268).

31220102000212 is a wasteful number, since it uses less digits than its factorization.

31220102000212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93468590 (or 93468588 counting only the distinct ones).

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

Adding to 31220102000212 its reverse (21200020102213), we get a palindrome (52420122102425).

The spelling of 31220102000212 in words is "thirty-one trillion, two hundred twenty billion, one hundred two million, two hundred twelve", and thus it is an aban number.