2122554156 has 12 divisors (see below), whose sum is σ = 4952626392. Its totient is φ = 707518048.

The previous prime is 2122554143. The next prime is 2122554223. The reversal of 2122554156 is 6514552212.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×2122554156² = 9010472290305744672, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88439745 + ... + 88439768.

It is an arithmetic number, because the mean of its divisors is an integer number (412718866).

Almost surely, 2^2122554156 is an apocalyptic number.

It is an amenable number.

2122554156 is an abundant number, since it is smaller than the sum of its proper divisors (2830072236).

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

2122554156 is a wasteful number, since it uses less digits than its factorization.

2122554156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176879520 (or 176879518 counting only the distinct ones).

The product of its digits is 24000, while the sum is 33.

The square root of 2122554156 is about 46071.1857455395. The cubic root of 2122554156 is about 1285.1473546996.

The spelling of 2122554156 in words is "two billion, one hundred twenty-two million, five hundred fifty-four thousand, one hundred fifty-six".