2199802366251 has 32 divisors (see below), whose sum is σ = 3724602337280. Its totient is φ = 1257006558528.

The previous prime is 2199802366207. The next prime is 2199802366337. The reversal of 2199802366251 is 1526632089912.

2199802366251 is a `hidden beast` number, since 2 + 1 + 9 + 9 + 8 + 0 + 2 + 3 + 6 + 625 + 1 = 666.

It is not a de Polignac number, because 2199802366251 - 2³⁰ = 2198728624427 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2199802316251) 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, 18898110 + ... + 19014156.

It is an arithmetic number, because the mean of its divisors is an integer number (116393823040).

Almost surely, 2^{2199802366251} is an apocalyptic number.

2199802366251 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2199802366251 is a deficient number, since it is larger than the sum of its proper divisors (1524799971029).

2199802366251 is a wasteful number, since it uses less digits than its factorization.

2199802366251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216360 (or 216354 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 54.

The spelling of 2199802366251 in words is "two trillion, one hundred ninety-nine billion, eight hundred two million, three hundred sixty-six thousand, two hundred fifty-one".