20021202112110 has 128 divisors (see below), whose sum is σ = 48410792277120. Its totient is φ = 5299126272000.

The previous prime is 20021202112103. The next prime is 20021202112127. The reversal of 20021202112110 is 1121120212002.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 20021202112110.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11116713210 + ... + 11116715010.

It is an arithmetic number, because the mean of its divisors is an integer number (378209314665).

Almost surely, 2^{20021202112110} is an apocalyptic number.

20021202112110 is an abundant number, since it is smaller than the sum of its proper divisors (28389590165010).

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

20021202112110 is a wasteful number, since it uses less digits than its factorization.

20021202112110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4854.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20021202112110 its reverse (1121120212002), we get a palindrome (21142322324112).

The spelling of 20021202112110 in words is "twenty trillion, twenty-one billion, two hundred two million, one hundred twelve thousand, one hundred ten".