22012145405302 has 16 divisors (see below), whose sum is σ = 35580600473040. Its totient is φ = 10153017601632.

The previous prime is 22012145405231. The next prime is 22012145405311. The reversal of 22012145405302 is 20350454121022.

It is a happy number.

It is a super-2 number, since 2×22012145405302² (a number of 27 digits) contains 22 as substring.

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, 268046653 + ... + 268128760.

It is an arithmetic number, because the mean of its divisors is an integer number (2223787529565).

Almost surely, 2^{22012145405302} is an apocalyptic number.

22012145405302 is a deficient number, since it is larger than the sum of its proper divisors (13568455067738).

22012145405302 is a wasteful number, since it uses less digits than its factorization.

22012145405302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536177007.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 22012145405302 its reverse (20350454121022), we get a palindrome (42362599526324).

The spelling of 22012145405302 in words is "twenty-two trillion, twelve billion, one hundred forty-five million, four hundred five thousand, three hundred two".