20201220100110 has 64 divisors (see below), whose sum is σ = 55780933824000. Its totient is φ = 4586432322432.

The previous prime is 20201220100097. The next prime is 20201220100147. The reversal of 20201220100110 is 1100102210202.

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, 322775040 + ... + 322837619.

It is an arithmetic number, because the mean of its divisors is an integer number (871577091000).

Almost surely, 2^{20201220100110} is an apocalyptic number.

20201220100110 is an abundant number, since it is smaller than the sum of its proper divisors (35579713723890).

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

20201220100110 is a wasteful number, since it uses less digits than its factorization.

20201220100110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645612825.

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

Adding to 20201220100110 its reverse (1100102210202), we get a palindrome (21301322310312).

The spelling of 20201220100110 in words is "twenty trillion, two hundred one billion, two hundred twenty million, one hundred thousand, one hundred ten".