120012201220 has 24 divisors (see below), whose sum is σ = 252157860864. Its totient is φ = 47979692256.

The previous prime is 120012201181. The next prime is 120012201229. The reversal of 120012201220 is 22102210021.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 120012201220.

It is not an unprimeable number, because it can be changed into a prime (120012201229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1535172 + ... + 1611451.

It is an arithmetic number, because the mean of its divisors is an integer number (10506577536).

Almost surely, 2^120012201220 is an apocalyptic number.

120012201220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120012201220 is an abundant number, since it is smaller than the sum of its proper divisors (132145659644).

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

120012201220 is a wasteful number, since it uses less digits than its factorization.

120012201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3148539 (or 3148537 counting only the distinct ones).

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

Adding to 120012201220 its reverse (22102210021), we get a palindrome (142114411241).

The spelling of 120012201220 in words is "one hundred twenty billion, twelve million, two hundred one thousand, two hundred twenty".