2100623561212 has 48 divisors (see below), whose sum is σ = 4246429350240. Its totient is φ = 898609766400.

The previous prime is 2100623561189. The next prime is 2100623561227. The reversal of 2100623561212 is 2121653260012.

It is a super-2 number, since 2×2100623561212² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14370412 + ... + 14515852.

It is an arithmetic number, because the mean of its divisors is an integer number (88467278130).

Almost surely, 2^{2100623561212} is an apocalyptic number.

2100623561212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2100623561212 is an abundant number, since it is smaller than the sum of its proper divisors (2145805789028).

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

2100623561212 is a wasteful number, since it uses less digits than its factorization.

2100623561212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164782 (or 164780 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 2100623561212 in words is "two trillion, one hundred billion, six hundred twenty-three million, five hundred sixty-one thousand, two hundred twelve".