2111556201151 has 4 divisors (see below), whose sum is σ = 2235765389472. Its totient is φ = 1987347012832.

The previous prime is 2111556201143. The next prime is 2111556201191. The reversal of 2111556201151 is 1511026551112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2111556201151 - 2³ = 2111556201143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111556201191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62104594135 + ... + 62104594168.

It is an arithmetic number, because the mean of its divisors is an integer number (558941347368).

Almost surely, 2^{2111556201151} is an apocalyptic number.

2111556201151 is a deficient number, since it is larger than the sum of its proper divisors (124209188321).

2111556201151 is a wasteful number, since it uses less digits than its factorization.

2111556201151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124209188320.

The product of its (nonzero) digits is 3000, while the sum is 31.

The spelling of 2111556201151 in words is "two trillion, one hundred eleven billion, five hundred fifty-six million, two hundred one thousand, one hundred fifty-one".