220100201001020 has 24 divisors (see below), whose sum is σ = 463967876189664. Its totient is φ = 87705327240896.

The previous prime is 220100201001017. The next prime is 220100201001089. The reversal of 220100201001020 is 20100102001022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220100201000992 and 220100201001010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20922067079 + ... + 20922077598.

It is an arithmetic number, because the mean of its divisors is an integer number (19331994841236).

Almost surely, 2^{220100201001020} is an apocalyptic number.

220100201001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220100201001020 is an abundant number, since it is smaller than the sum of its proper divisors (243867675188644).

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

220100201001020 is a wasteful number, since it uses less digits than its factorization.

220100201001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41844144949 (or 41844144947 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 220100201001020 its reverse (20100102001022), we get a palindrome (240200303002042).

The spelling of 220100201001020 in words is "two hundred twenty trillion, one hundred billion, two hundred one million, one thousand, twenty".