2251210113201 has 32 divisors (see below), whose sum is σ = 3636778713088. Its totient is φ = 1211262621120.

The previous prime is 2251210113161. The next prime is 2251210113211. The reversal of 2251210113201 is 1023110121522.

It is not a de Polignac number, because 2251210113201 - 2⁶ = 2251210113137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2251210113211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46706725 + ... + 46754898.

It is an arithmetic number, because the mean of its divisors is an integer number (113649334784).

Almost surely, 2^{2251210113201} is an apocalyptic number.

2251210113201 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2251210113201 is a deficient number, since it is larger than the sum of its proper divisors (1385568599887).

2251210113201 is a wasteful number, since it uses less digits than its factorization.

2251210113201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93461701.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 2251210113201 its reverse (1023110121522), we get a palindrome (3274320234723).

The spelling of 2251210113201 in words is "two trillion, two hundred fifty-one billion, two hundred ten million, one hundred thirteen thousand, two hundred one".