220115215012 has 48 divisors (see below), whose sum is σ = 496811790720. Its totient is φ = 82801958400.

The previous prime is 220115214973. The next prime is 220115215031. The reversal of 220115215012 is 210512511022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12312789 + ... + 12330652.

It is an arithmetic number, because the mean of its divisors is an integer number (10350245640).

Almost surely, 2^220115215012 is an apocalyptic number.

220115215012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220115215012 is an abundant number, since it is smaller than the sum of its proper divisors (276696575708).

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

220115215012 is a wasteful number, since it uses less digits than its factorization.

220115215012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24643492 (or 24643490 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 22.

Adding to 220115215012 its reverse (210512511022), we get a palindrome (430627726034).

The spelling of 220115215012 in words is "two hundred twenty billion, one hundred fifteen million, two hundred fifteen thousand, twelve".