220021021110 has 64 divisors (see below), whose sum is σ = 577209888000. Its totient is φ = 53231498880.

The previous prime is 220021021097. The next prime is 220021021133. The reversal of 220021021110 is 11120120022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 503397 + ... + 832736.

It is an arithmetic number, because the mean of its divisors is an integer number (9018904500).

Almost surely, 2^220021021110 is an apocalyptic number.

220021021110 is an abundant number, since it is smaller than the sum of its proper divisors (357188866890).

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

220021021110 is a wasteful number, since it uses less digits than its factorization.

220021021110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1336653.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 220021021110 its reverse (11120120022), we get a palindrome (231141141132).

The spelling of 220021021110 in words is "two hundred twenty billion, twenty-one million, twenty-one thousand, one hundred ten".