211000022121212 has 12 divisors (see below), whose sum is σ = 369307978508616. Its totient is φ = 105483456833040.

The previous prime is 211000022121199. The next prime is 211000022121247. The reversal of 211000022121212 is 212121220000112.

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, 4138528214 + ... + 4138579197.

It is an arithmetic number, because the mean of its divisors is an integer number (30775664875718).

Almost surely, 2^{211000022121212} is an apocalyptic number.

It is an amenable number.

211000022121212 is a deficient number, since it is larger than the sum of its proper divisors (158307956387404).

211000022121212 is a wasteful number, since it uses less digits than its factorization.

211000022121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8277113788 (or 8277113786 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211000022121212 its reverse (212121220000112), we get a palindrome (423121242121324).

The spelling of 211000022121212 in words is "two hundred eleven trillion, twenty-two million, one hundred twenty-one thousand, two hundred twelve".