212010021121120 has 48 divisors (see below), whose sum is σ = 502969380742080. Its totient is φ = 84449179945984.

The previous prime is 212010021121097. The next prime is 212010021121133. The reversal of 212010021121120 is 21121120010212.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 212010021121094 and 212010021121103.

It is a congruent number.

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, 2772059317 + ... + 2772135796.

It is an arithmetic number, because the mean of its divisors is an integer number (10478528765460).

Almost surely, 2^{212010021121120} is an apocalyptic number.

212010021121120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212010021121120 is an abundant number, since it is smaller than the sum of its proper divisors (290959359620960).

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

212010021121120 is a wasteful number, since it uses less digits than its factorization.

212010021121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5544195367 (or 5544195359 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 212010021121120 its reverse (21121120010212), we get a palindrome (233131141131332).

The spelling of 212010021121120 in words is "two hundred twelve trillion, ten billion, twenty-one million, one hundred twenty-one thousand, one hundred twenty".