22145251447232 has 14 divisors (see below), whose sum is σ = 43944483340728. Its totient is φ = 11072625723584.

The previous prime is 22145251447223. The next prime is 22145251447243. The reversal of 22145251447232 is 23274415254122.

It is a super-2 number, since 2×22145251447232² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 173009776868 + ... + 173009776995.

Almost surely, 2^{22145251447232} is an apocalyptic number.

It is an amenable number.

22145251447232 is a deficient number, since it is larger than the sum of its proper divisors (21799231893496).

22145251447232 is an equidigital number, since it uses as much as digits as its factorization.

22145251447232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346019553875 (or 346019553865 counting only the distinct ones).

The product of its digits is 1075200, while the sum is 44.

The spelling of 22145251447232 in words is "twenty-two trillion, one hundred forty-five billion, two hundred fifty-one million, four hundred forty-seven thousand, two hundred thirty-two".