220221022121010 has 32 divisors (see below), whose sum is σ = 587256058990080. Its totient is φ = 58725605898864.

The previous prime is 220221022120969. The next prime is 220221022121021. The reversal of 220221022121010 is 10121220122022.

It is a happy number.

220221022121010 is a `hidden beast` number, since 2 + 2 + 0 + 221 + 0 + 221 + 210 + 10 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 407816707362 + ... + 407816707901.

It is an arithmetic number, because the mean of its divisors is an integer number (18351751843440).

Almost surely, 2^{220221022121010} is an apocalyptic number.

220221022121010 is an abundant number, since it is smaller than the sum of its proper divisors (367035036869070).

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

220221022121010 is a wasteful number, since it uses less digits than its factorization.

220221022121010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815633415279 (or 815633415273 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220221022121010 its reverse (10121220122022), we get a palindrome (230342242243032).

The spelling of 220221022121010 in words is "two hundred twenty trillion, two hundred twenty-one billion, twenty-two million, one hundred twenty-one thousand, ten".