2220100102120 has 16 divisors (see below), whose sum is σ = 4995225229860. Its totient is φ = 888040040832.

The previous prime is 2220100102109. The next prime is 2220100102127. The reversal of 2220100102120 is 212010010222.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2169393168996 + 50706933124 = 1472886^2 + 225182^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2220100102120.

It is not an unprimeable number, because it can be changed into a prime (2220100102127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27751251237 + ... + 27751251316.

Almost surely, 2^{2220100102120} is an apocalyptic number.

2220100102120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2220100102120 is an abundant number, since it is smaller than the sum of its proper divisors (2775125127740).

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

2220100102120 is a wasteful number, since it uses less digits than its factorization.

2220100102120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55502502564 (or 55502502560 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 2220100102120 its reverse (212010010222), we get a palindrome (2432110112342).

The spelling of 2220100102120 in words is "two trillion, two hundred twenty billion, one hundred million, one hundred two thousand, one hundred twenty".