211001202012120 has 128 divisors (see below), whose sum is σ = 686600480966400. Its totient is φ = 51565097240064.

The previous prime is 211001202012049. The next prime is 211001202012127. The reversal of 211001202012120 is 21210202100112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 211001202012120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211001202012127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 486319782 + ... + 486753461.

It is an arithmetic number, because the mean of its divisors is an integer number (5364066257550).

Almost surely, 2^{211001202012120} is an apocalyptic number.

211001202012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211001202012120 is an abundant number, since it is smaller than the sum of its proper divisors (475599278954280).

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

211001202012120 is a wasteful number, since it uses less digits than its factorization.

211001202012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973073409 (or 973073405 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 211001202012120 its reverse (21210202100112), we get a palindrome (232211404112232).

The spelling of 211001202012120 in words is "two hundred eleven trillion, one billion, two hundred two million, twelve thousand, one hundred twenty".