212110110009980 has 192 divisors, whose sum is σ = 551373286947840. Its totient is φ = 66743729934336.

The previous prime is 212110110009979. The next prime is 212110110010063. The reversal of 212110110009980 is 89900011011212.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 212110110009980.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2194731539 + ... + 2194828181.

It is an arithmetic number, because the mean of its divisors is an integer number (2871735869520).

Almost surely, 2^{212110110009980} is an apocalyptic number.

212110110009980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212110110009980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275686643473920).

212110110009980 is an abundant number, since it is smaller than the sum of its proper divisors (339263176937860).

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

212110110009980 is a wasteful number, since it uses less digits than its factorization.

212110110009980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103588 (or 103586 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 212110110009980 in words is "two hundred twelve trillion, one hundred ten billion, one hundred ten million, nine thousand, nine hundred eighty".