220012001020 has 24 divisors (see below), whose sum is σ = 528028802784. Its totient is φ = 75432686016.

The previous prime is 220012000997. The next prime is 220012001161. The reversal of 220012001020 is 20100210022.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 220012000988 and 220012001006.

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, 785757007 + ... + 785757286.

It is an arithmetic number, because the mean of its divisors is an integer number (22001200116).

Almost surely, 2^220012001020 is an apocalyptic number.

220012001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220012001020 is an abundant number, since it is smaller than the sum of its proper divisors (308016801764).

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

220012001020 is a wasteful number, since it uses less digits than its factorization.

220012001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1571514309 (or 1571514307 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 10.

Adding to 220012001020 its reverse (20100210022), we get a palindrome (240112211042).

The spelling of 220012001020 in words is "two hundred twenty billion, twelve million, one thousand, twenty".