2131102220011 has 4 divisors (see below), whose sum is σ = 2131120729800. Its totient is φ = 2131083710224.

The previous prime is 2131102219979. The next prime is 2131102220053. The reversal of 2131102220011 is 1100222011312.

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 2131102220011 - 2⁵ = 2131102219979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2131102220111) 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, 9081106 + ... + 9312823.

It is an arithmetic number, because the mean of its divisors is an integer number (532780182450).

Almost surely, 2^{2131102220011} is an apocalyptic number.

2131102220011 is a deficient number, since it is larger than the sum of its proper divisors (18509789).

2131102220011 is a wasteful number, since it uses less digits than its factorization.

2131102220011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18509788.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 2131102220011 its reverse (1100222011312), we get a palindrome (3231324231323).

The spelling of 2131102220011 in words is "two trillion, one hundred thirty-one billion, one hundred two million, two hundred twenty thousand, eleven".