202011100111220 has 48 divisors (see below), whose sum is σ = 425817281947008. Its totient is φ = 80500912007040.

The previous prime is 202011100111109. The next prime is 202011100111243. The reversal of 202011100111220 is 22111001110202.

It is a junction number, because it is equal to n+sod(n) for n = 202011100111195 and 202011100111204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35127275 + ... + 40471565.

It is an arithmetic number, because the mean of its divisors is an integer number (8871193373896).

Almost surely, 2^{202011100111220} is an apocalyptic number.

202011100111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202011100111220 is an abundant number, since it is smaller than the sum of its proper divisors (223806181835788).

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

202011100111220 is a wasteful number, since it uses less digits than its factorization.

202011100111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351400 (or 5351398 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 202011100111220 its reverse (22111001110202), we get a palindrome (224122101221422).

The spelling of 202011100111220 in words is "two hundred two trillion, eleven billion, one hundred million, one hundred eleven thousand, two hundred twenty".