20021102101110 has 64 divisors (see below), whose sum is σ = 52899792802560. Its totient is φ = 4809072055680.

The previous prime is 20021102101037. The next prime is 20021102101139. The reversal of 20021102101110 is 1110120112002.

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, 278266812 + ... + 278338751.

It is an arithmetic number, because the mean of its divisors is an integer number (826559262540).

Almost surely, 2^{20021102101110} is an apocalyptic number.

20021102101110 is an abundant number, since it is smaller than the sum of its proper divisors (32878690701450).

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

20021102101110 is a wasteful number, since it uses less digits than its factorization.

20021102101110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556605693.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20021102101110 its reverse (1110120112002), we get a palindrome (21131222213112).

The spelling of 20021102101110 in words is "twenty trillion, twenty-one billion, one hundred two million, one hundred one thousand, one hundred ten".