2120130021220 has 96 divisors (see below), whose sum is σ = 4992556601088. Its totient is φ = 752068534272.

The previous prime is 2120130021211. The next prime is 2120130021221. The reversal of 2120130021220 is 221200310212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2120130021194 and 2120130021203.

It is not an unprimeable number, because it can be changed into a prime (2120130021221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1499317 + ... + 2547196.

It is an arithmetic number, because the mean of its divisors is an integer number (52005797928).

Almost surely, 2^{2120130021220} is an apocalyptic number.

2120130021220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120130021220 is an abundant number, since it is smaller than the sum of its proper divisors (2872426579868).

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

2120130021220 is a wasteful number, since it uses less digits than its factorization.

2120130021220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4046629 (or 4046627 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2120130021220 its reverse (221200310212), we get a palindrome (2341330331432).

The spelling of 2120130021220 in words is "two trillion, one hundred twenty billion, one hundred thirty million, twenty-one thousand, two hundred twenty".