22120314646 has 16 divisors (see below), whose sum is σ = 34007578704. Its totient is φ = 10785295584.

The previous prime is 22120314613. The next prime is 22120314673. The reversal of 22120314646 is 64641302122.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157081 + ... + 262516.

It is an arithmetic number, because the mean of its divisors is an integer number (2125473669).

Almost surely, 2^22120314646 is an apocalyptic number.

22120314646 is a deficient number, since it is larger than the sum of its proper divisors (11887264058).

22120314646 is a wasteful number, since it uses less digits than its factorization.

22120314646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420255.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 22120314646 its reverse (64641302122), we get a palindrome (86761616768).

The spelling of 22120314646 in words is "twenty-two billion, one hundred twenty million, three hundred fourteen thousand, six hundred forty-six".