211012012121000 has 64 divisors (see below), whose sum is σ = 493775351784000. Its totient is φ = 84403566657600.

The previous prime is 211012012120993. The next prime is 211012012121023. The reversal of 211012012121000 is 121210210112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68226131 + ... + 71251869.

It is an arithmetic number, because the mean of its divisors is an integer number (7715239871625).

Almost surely, 2^{211012012121000} is an apocalyptic number.

211012012121000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211012012121000 is an abundant number, since it is smaller than the sum of its proper divisors (282763339663000).

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

211012012121000 is a wasteful number, since it uses less digits than its factorization.

211012012121000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095499 (or 3095485 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 211012012121000 its reverse (121210210112), we get a palindrome (211133222331112).

The spelling of 211012012121000 in words is "two hundred eleven trillion, twelve billion, twelve million, one hundred twenty-one thousand".