220131022030320 has 80 divisors (see below), whose sum is σ = 682419766794912. Its totient is φ = 58700436111360.

The previous prime is 220131022030273. The next prime is 220131022030327. The reversal of 220131022030320 is 23030220131022.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×220131022030320² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220131022030327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2963424 + ... + 21190656.

Almost surely, 2^{220131022030320} is an apocalyptic number.

220131022030320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220131022030320 is an abundant number, since it is smaller than the sum of its proper divisors (462288744764592).

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

220131022030320 is a wasteful number, since it uses less digits than its factorization.

220131022030320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18277570 (or 18277564 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 220131022030320 its reverse (23030220131022), we get a palindrome (243161242161342).

The spelling of 220131022030320 in words is "two hundred twenty trillion, one hundred thirty-one billion, twenty-two million, thirty thousand, three hundred twenty".