211012201121212 has 12 divisors (see below), whose sum is σ = 369366943848336. Its totient is φ = 105478788593120.

The previous prime is 211012201121191. The next prime is 211012201121221. The reversal of 211012201121212 is 212121102210112.

It is a happy number.

It is a super-2 number, since 2×211012201121212² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211012201121212.

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, 6827974489 + ... + 6828005392.

It is an arithmetic number, because the mean of its divisors is an integer number (30780578654028).

Almost surely, 2^{211012201121212} is an apocalyptic number.

It is an amenable number.

211012201121212 is a deficient number, since it is larger than the sum of its proper divisors (158354742727124).

211012201121212 is a wasteful number, since it uses less digits than its factorization.

211012201121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13655983748 (or 13655983746 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 211012201121212 its reverse (212121102210112), we get a palindrome (423133303331324).

The spelling of 211012201121212 in words is "two hundred eleven trillion, twelve billion, two hundred one million, one hundred twenty-one thousand, two hundred twelve".