213031222323212 has 24 divisors (see below), whose sum is σ = 390574335406080. Its totient is φ = 101541121854480.

The previous prime is 213031222323151. The next prime is 213031222323263. The reversal of 213031222323212 is 212323222130312.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12820840412 + ... + 12820857027.

It is an arithmetic number, because the mean of its divisors is an integer number (16273930641920).

Almost surely, 2^{213031222323212} is an apocalyptic number.

It is an amenable number.

213031222323212 is a deficient number, since it is larger than the sum of its proper divisors (177543113082868).

213031222323212 is a wasteful number, since it uses less digits than its factorization.

213031222323212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25641697541 (or 25641697539 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 213031222323212 its reverse (212323222130312), we get a palindrome (425354444453524).

The spelling of 213031222323212 in words is "two hundred thirteen trillion, thirty-one billion, two hundred twenty-two million, three hundred twenty-three thousand, two hundred twelve".