212140234109988 has 72 divisors (see below), whose sum is σ = 536536852121088. Its totient is φ = 70674716458368.

The previous prime is 212140234109981. The next prime is 212140234110011. The reversal of 212140234109988 is 889901432041212.

212140234109988 is a `hidden beast` number, since 2 + 1 + 2 + 1 + 40 + 23 + 410 + 99 + 88 = 666.

212140234109988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212140234109988² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212140234109981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 882829945 + ... + 883070207.

It is an arithmetic number, because the mean of its divisors is an integer number (7451900723904).

Almost surely, 2^{212140234109988} is an apocalyptic number.

It is an amenable number.

212140234109988 is an abundant number, since it is smaller than the sum of its proper divisors (324396618011100).

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

212140234109988 is a wasteful number, since it uses less digits than its factorization.

212140234109988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253593 (or 253588 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The spelling of 212140234109988 in words is "two hundred twelve trillion, one hundred forty billion, two hundred thirty-four million, one hundred nine thousand, nine hundred eighty-eight".