2112202451 has 12 divisors (see below), whose sum is σ = 2266919928. Its totient is φ = 1967434752.

The previous prime is 2112202427. The next prime is 2112202457. The reversal of 2112202451 is 1542022112.

It is not a de Polignac number, because 2112202451 - 2¹⁴ = 2112186067 is a prime.

It is a super-2 number, since 2×2112202451² = 8922798388020814802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112202457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9641 + ... + 65706.

It is an arithmetic number, because the mean of its divisors is an integer number (188909994).

Almost surely, 2^2112202451 is an apocalyptic number.

2112202451 is a deficient number, since it is larger than the sum of its proper divisors (154717477).

2112202451 is an equidigital number, since it uses as much as digits as its factorization.

2112202451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75478 (or 75461 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 2112202451 is about 45958.7037567423. The cubic root of 2112202451 is about 1283.0547261767.

Adding to 2112202451 its reverse (1542022112), we get a palindrome (3654224563).

The spelling of 2112202451 in words is "two billion, one hundred twelve million, two hundred two thousand, four hundred fifty-one".