201000022020 has 96 divisors (see below), whose sum is σ = 714666758400. Its totient is φ = 45942861312.

The previous prime is 201000021997. The next prime is 201000022033. The reversal of 201000022020 is 20220000102.

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

It is a junction number, because it is equal to n+sod(n) for n = 201000021993 and 201000022011.

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, 26583525 + ... + 26591084.

It is an arithmetic number, because the mean of its divisors is an integer number (7444445400).

Almost surely, 2^201000022020 is an apocalyptic number.

201000022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201000022020 is an abundant number, since it is smaller than the sum of its proper divisors (513666736380).

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

201000022020 is a wasteful number, since it uses less digits than its factorization.

201000022020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53174634 (or 53174626 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

Adding to 201000022020 its reverse (20220000102), we get a palindrome (221220022122).

The spelling of 201000022020 in words is "two hundred one billion, twenty-two thousand, twenty".