22145042044450 has 96 divisors (see below), whose sum is σ = 45571528235520. Its totient is φ = 7953120172800.

The previous prime is 22145042044439. The next prime is 22145042044469. The reversal of 22145042044450 is 5444024054122.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 76599271 + ... + 76887829.

It is an arithmetic number, because the mean of its divisors is an integer number (474703419120).

Almost surely, 2^{22145042044450} is an apocalyptic number.

22145042044450 is an abundant number, since it is smaller than the sum of its proper divisors (23426486191070).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22145042044450 is a wasteful number, since it uses less digits than its factorization.

22145042044450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291812 (or 291807 counting only the distinct ones).

The product of its (nonzero) digits is 204800, while the sum is 37.

Adding to 22145042044450 its reverse (5444024054122), we get a palindrome (27589066098572).

The spelling of 22145042044450 in words is "twenty-two trillion, one hundred forty-five billion, forty-two million, forty-four thousand, four hundred fifty".