2122198756902 has 48 divisors (see below), whose sum is σ = 5256158368032. Its totient is φ = 606205192320.

The previous prime is 2122198756901. The next prime is 2122198756921. The reversal of 2122198756902 is 2096578912212.

2122198756902 is a `hidden beast` number, since 212 + 219 + 87 + 56 + 90 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2122198756901) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1347823 + ... + 2461914.

It is an arithmetic number, because the mean of its divisors is an integer number (109503299334).

Almost surely, 2^{2122198756902} is an apocalyptic number.

2122198756902 is an abundant number, since it is smaller than the sum of its proper divisors (3133959611130).

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

2122198756902 is a wasteful number, since it uses less digits than its factorization.

2122198756902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3814173 (or 3814170 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 2122198756902 in words is "two trillion, one hundred twenty-two billion, one hundred ninety-eight million, seven hundred fifty-six thousand, nine hundred two".