201000100010220 has 144 divisors (see below), whose sum is σ = 699511633224768. Its totient is φ = 45764113858560.

The previous prime is 201000100010111. The next prime is 201000100010231. The reversal of 201000100010220 is 22010001000102.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 310033941 + ... + 310681580.

It is an arithmetic number, because the mean of its divisors is an integer number (4857719675172).

Almost surely, 2^{201000100010220} is an apocalyptic number.

201000100010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201000100010220 is an abundant number, since it is smaller than the sum of its proper divisors (498511533214548).

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

201000100010220 is a wasteful number, since it uses less digits than its factorization.

201000100010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620715800 (or 620715795 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 201000100010220 its reverse (22010001000102), we get a palindrome (223010101010322).

The spelling of 201000100010220 in words is "two hundred one trillion, one hundred million, ten thousand, two hundred twenty".