120202121220 has 24 divisors (see below), whose sum is σ = 336565939584. Its totient is φ = 32053898976.

The previous prime is 120202121219. The next prime is 120202121231. The reversal of 120202121220 is 22121202021.

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 120202121220.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1001684284 + ... + 1001684403.

It is an arithmetic number, because the mean of its divisors is an integer number (14023580816).

Almost surely, 2^120202121220 is an apocalyptic number.

120202121220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120202121220 is an abundant number, since it is smaller than the sum of its proper divisors (216363818364).

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

120202121220 is a wasteful number, since it uses less digits than its factorization.

120202121220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2003368699 (or 2003368697 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 120202121220 its reverse (22121202021), we get a palindrome (142323323241).

The spelling of 120202121220 in words is "one hundred twenty billion, two hundred two million, one hundred twenty-one thousand, two hundred twenty".