211220122102212 has 24 divisors (see below), whose sum is σ = 521837948723616. Its totient is φ = 66265136345728.

The previous prime is 211220122102141. The next prime is 211220122102247. The reversal of 211220122102212 is 212201221022112.

It is a super-2 number, since 2×211220122102212² (a number of 29 digits) contains 22 as substring.

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, 517696377498 + ... + 517696377905.

It is an arithmetic number, because the mean of its divisors is an integer number (21743247863484).

Almost surely, 2^{211220122102212} is an apocalyptic number.

It is an amenable number.

211220122102212 is an abundant number, since it is smaller than the sum of its proper divisors (310617826621404).

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

211220122102212 is a wasteful number, since it uses less digits than its factorization.

211220122102212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035392755427 (or 1035392755425 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

Adding to 211220122102212 its reverse (212201221022112), we get a palindrome (423421343124324).

The spelling of 211220122102212 in words is "two hundred eleven trillion, two hundred twenty billion, one hundred twenty-two million, one hundred two thousand, two hundred twelve".