201000011111220 has 96 divisors (see below), whose sum is σ = 564226570575360. Its totient is φ = 53464295188480.

The previous prime is 201000011111209. The next prime is 201000011111261. The reversal of 201000011111220 is 22111110000102.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 201000011111196 and 201000011111205.

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, 39628261 + ... + 44411699.

It is an arithmetic number, because the mean of its divisors is an integer number (5877360110160).

Almost surely, 2^{201000011111220} is an apocalyptic number.

201000011111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201000011111220 is an abundant number, since it is smaller than the sum of its proper divisors (363226559464140).

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

201000011111220 is a wasteful number, since it uses less digits than its factorization.

201000011111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4785225 (or 4785223 counting only the distinct ones).

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

Adding to 201000011111220 its reverse (22111110000102), we get a palindrome (223111121111322).

The spelling of 201000011111220 in words is "two hundred one trillion, eleven million, one hundred eleven thousand, two hundred twenty".