22233221002251 has 32 divisors (see below), whose sum is σ = 37643868416000. Its totient is φ = 12704589840960.

The previous prime is 22233221002229. The next prime is 22233221002271. The reversal of 22233221002251 is 15220012233222.

22233221002251 is a `hidden beast` number, since 2 + 2 + 2 + 332 + 2 + 100 + 225 + 1 = 666.

It is not a de Polignac number, because 22233221002251 - 2²¹ = 22233218905099 is a prime.

It is a super-2 number, since 2×22233221002251² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (22233221002211) 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, 25348191 + ... + 26210631.

It is an arithmetic number, because the mean of its divisors is an integer number (1176370888000).

Almost surely, 2^{22233221002251} is an apocalyptic number.

22233221002251 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

22233221002251 is a deficient number, since it is larger than the sum of its proper divisors (15410647413749).

22233221002251 is a wasteful number, since it uses less digits than its factorization.

22233221002251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998856 (or 998850 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 22233221002251 its reverse (15220012233222), we get a palindrome (37453233235473).

The spelling of 22233221002251 in words is "twenty-two trillion, two hundred thirty-three billion, two hundred twenty-one million, two thousand, two hundred fifty-one".