2102214152251 has 16 divisors (see below), whose sum is σ = 2158601757696. Its totient is φ = 2046501789696.

The previous prime is 2102214152243. The next prime is 2102214152267. The reversal of 2102214152251 is 1522514122012.

It is a cyclic number.

It is not a de Polignac number, because 2102214152251 - 2³ = 2102214152243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102214152651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3649411 + ... + 4186003.

It is an arithmetic number, because the mean of its divisors is an integer number (134912609856).

Almost surely, 2^{2102214152251} is an apocalyptic number.

2102214152251 is a deficient number, since it is larger than the sum of its proper divisors (56387605445).

2102214152251 is a wasteful number, since it uses less digits than its factorization.

2102214152251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537222.

The product of its (nonzero) digits is 3200, while the sum is 28.

Adding to 2102214152251 its reverse (1522514122012), we get a palindrome (3624728274263).

The spelling of 2102214152251 in words is "two trillion, one hundred two billion, two hundred fourteen million, one hundred fifty-two thousand, two hundred fifty-one".