2120022002220 has 96 divisors (see below), whose sum is σ = 6336492986880. Its totient is φ = 528041041920.

The previous prime is 2120022002191. The next prime is 2120022002221. The reversal of 2120022002220 is 222002200212.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 2120022002220.

It is not an unprimeable number, because it can be changed into a prime (2120022002221) 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, 13015317 + ... + 13177196.

It is an arithmetic number, because the mean of its divisors is an integer number (66005135280).

Almost surely, 2^{2120022002220} is an apocalyptic number.

2120022002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2120022002220 is an abundant number, since it is smaller than the sum of its proper divisors (4216470984660).

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

2120022002220 is a wasteful number, since it uses less digits than its factorization.

2120022002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26192615 (or 26192613 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 2120022002220 its reverse (222002200212), we get a palindrome (2342024202432).

The spelling of 2120022002220 in words is "two trillion, one hundred twenty billion, twenty-two million, two thousand, two hundred twenty".