2156101105012 has 24 divisors (see below), whose sum is σ = 3853542309120. Its totient is φ = 1055090028960.

The previous prime is 2156101104973. The next prime is 2156101105031. The reversal of 2156101105012 is 2105011016512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11024962 + ... + 11218822.

It is an arithmetic number, because the mean of its divisors is an integer number (160564262880).

Almost surely, 2^{2156101105012} is an apocalyptic number.

It is an amenable number.

2156101105012 is a deficient number, since it is larger than the sum of its proper divisors (1697441204108).

2156101105012 is a wasteful number, since it uses less digits than its factorization.

2156101105012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 253071 (or 253069 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 25.

The spelling of 2156101105012 in words is "two trillion, one hundred fifty-six billion, one hundred one million, one hundred five thousand, twelve".