321211211232212 has 48 divisors (see below), whose sum is σ = 676237058542080. Its totient is φ = 130416017004000.

The previous prime is 321211211232173. The next prime is 321211211232319. The reversal of 321211211232212 is 212232112112123.

It is a super-2 number, since 2×321211211232212² (a number of 30 digits) contains 22 as substring.

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, 134932787 + ... + 137292677.

It is an arithmetic number, because the mean of its divisors is an integer number (14088272052960).

Almost surely, 2^{321211211232212} is an apocalyptic number.

It is an amenable number.

321211211232212 is an abundant number, since it is smaller than the sum of its proper divisors (355025847309868).

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

321211211232212 is a wasteful number, since it uses less digits than its factorization.

321211211232212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2615772 (or 2615770 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

Adding to 321211211232212 its reverse (212232112112123), we get a palindrome (533443323344335).

The spelling of 321211211232212 in words is "three hundred twenty-one trillion, two hundred eleven billion, two hundred eleven million, two hundred thirty-two thousand, two hundred twelve".