2120200310020 has 48 divisors (see below), whose sum is σ = 4795236678960. Its totient is φ = 782790598656.

The previous prime is 2120200309967. The next prime is 2120200310023. The reversal of 2120200310020 is 200130020212.

It can be written as a sum of positive squares in 8 ways, for example, as 1108518391044 + 1011681918976 = 1052862^2 + 1005824^2 .

It is a super-2 number, since 2×2120200310020² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (2120200310023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3715116 + ... + 4247644.

It is an arithmetic number, because the mean of its divisors is an integer number (99900764145).

Almost surely, 2^{2120200310020} is an apocalyptic number.

2120200310020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120200310020 is an abundant number, since it is smaller than the sum of its proper divisors (2675036368940).

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

2120200310020 is a wasteful number, since it uses less digits than its factorization.

2120200310020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547864 (or 547862 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 2120200310020 its reverse (200130020212), we get a palindrome (2320330330232).

The spelling of 2120200310020 in words is "two trillion, one hundred twenty billion, two hundred million, three hundred ten thousand, twenty".