22151261630 has 16 divisors (see below), whose sum is σ = 42217698960. Its totient is φ = 8339298432.

The previous prime is 22151261623. The next prime is 22151261651. The reversal of 22151261630 is 3616215122.

It is a junction number, because it is equal to n+sod(n) for n = 22151261593 and 22151261602.

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, 65150600 + ... + 65150939.

It is an arithmetic number, because the mean of its divisors is an integer number (2638606185).

Almost surely, 2^22151261630 is an apocalyptic number.

22151261630 is a deficient number, since it is larger than the sum of its proper divisors (20066437330).

22151261630 is a wasteful number, since it uses less digits than its factorization.

22151261630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130301563.

The product of its (nonzero) digits is 4320, while the sum is 29.

Adding to 22151261630 its reverse (3616215122), we get a palindrome (25767476752).

The spelling of 22151261630 in words is "twenty-two billion, one hundred fifty-one million, two hundred sixty-one thousand, six hundred thirty".