20110100011220 has 96 divisors (see below), whose sum is σ = 44489585750400. Its totient is φ = 7614556084224.

The previous prime is 20110100011219. The next prime is 20110100011231. The reversal of 20110100011220 is 2211000101102.

It is a super-2 number, since 2×20110100011220² (a number of 27 digits) contains 22 as substring.

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, 4937415104 + ... + 4937419176.

It is an arithmetic number, because the mean of its divisors is an integer number (463433184900).

Almost surely, 2^{20110100011220} is an apocalyptic number.

20110100011220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110100011220 is an abundant number, since it is smaller than the sum of its proper divisors (24379485739180).

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

20110100011220 is a wasteful number, since it uses less digits than its factorization.

20110100011220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11337 (or 11335 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20110100011220 its reverse (2211000101102), we get a palindrome (22321100112322).

The spelling of 20110100011220 in words is "twenty trillion, one hundred ten billion, one hundred million, eleven thousand, two hundred twenty".