2122912783707 has 16 divisors (see below), whose sum is σ = 3019931620992. Its totient is φ = 1321855583360.

The previous prime is 2122912783669. The next prime is 2122912783727. The reversal of 2122912783707 is 7073872192212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2122912783707 - 2¹¹ = 2122912781659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 2122912783707.

It is not an unprimeable number, because it can be changed into a prime (2122912783727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158870193 + ... + 158883554.

It is an arithmetic number, because the mean of its divisors is an integer number (188745726312).

Almost surely, 2^{2122912783707} is an apocalyptic number.

2122912783707 is a deficient number, since it is larger than the sum of its proper divisors (897018837285).

2122912783707 is a wasteful number, since it uses less digits than its factorization.

2122912783707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317753898.

The product of its (nonzero) digits is 1185408, while the sum is 51.

The spelling of 2122912783707 in words is "two trillion, one hundred twenty-two billion, nine hundred twelve million, seven hundred eighty-three thousand, seven hundred seven".