1002220210120 has 16 divisors (see below), whose sum is σ = 2254995472860. Its totient is φ = 400888084032.

The previous prime is 1002220210037. The next prime is 1002220210127. The reversal of 1002220210120 is 210120222001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 913817459844 + 88402750276 = 955938^2 + 297326^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1002220210120.

It is not an unprimeable number, because it can be changed into a prime (1002220210127) 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, 12527752587 + ... + 12527752666.

Almost surely, 2^{1002220210120} is an apocalyptic number.

1002220210120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1002220210120 is an abundant number, since it is smaller than the sum of its proper divisors (1252775262740).

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

1002220210120 is a wasteful number, since it uses less digits than its factorization.

1002220210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25055505264 (or 25055505260 counting only the distinct ones).

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

Adding to 1002220210120 its reverse (210120222001), we get a palindrome (1212340432121).

The spelling of 1002220210120 in words is "one trillion, two billion, two hundred twenty million, two hundred ten thousand, one hundred twenty".