220021110102 has 16 divisors (see below), whose sum is σ = 441058489200. Its totient is φ = 73170991872.

The previous prime is 220021110091. The next prime is 220021110103. The reversal of 220021110102 is 201011120022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220021110103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42341727 + ... + 42346922.

It is an arithmetic number, because the mean of its divisors is an integer number (27566155575).

Almost surely, 2^220021110102 is an apocalyptic number.

220021110102 is an abundant number, since it is smaller than the sum of its proper divisors (221037379098).

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

220021110102 is a wasteful number, since it uses less digits than its factorization.

220021110102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84689087.

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

Adding to 220021110102 its reverse (201011120022), we get a palindrome (421032230124).

The spelling of 220021110102 in words is "two hundred twenty billion, twenty-one million, one hundred ten thousand, one hundred two".