2020001220 has 96 divisors (see below), whose sum is σ = 6557725440. Its totient is φ = 515243520.

The previous prime is 2020001213. The next prime is 2020001287. The reversal of 2020001220 is 221000202.

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 31 ways as a sum of consecutive naturals, for example, 68901 + ... + 93740.

It is an arithmetic number, because the mean of its divisors is an integer number (68309640).

Almost surely, 2^2020001220 is an apocalyptic number.

2020001220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2020001220 is an abundant number, since it is smaller than the sum of its proper divisors (4537724220).

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

2020001220 is a wasteful number, since it uses less digits than its factorization.

2020001220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162682 (or 162674 counting only the distinct ones).

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

The square root of 2020001220 is about 44944.4236808083. The cubic root of 2020001220 is about 1264.1071193534.

Adding to 2020001220 its reverse (221000202), we get a palindrome (2241001422).

The spelling of 2020001220 in words is "two billion, twenty million, one thousand, two hundred twenty".