1241202120 has 64 divisors (see below), whose sum is σ = 3776077440. Its totient is φ = 326323200.

The previous prime is 1241202119. The next prime is 1241202161. The reversal of 1241202120 is 212021421.

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 1241202120.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 64321 + ... + 81360.

It is an arithmetic number, because the mean of its divisors is an integer number (59001210).

Almost surely, 2^1241202120 is an apocalyptic number.

1241202120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1241202120 is an abundant number, since it is smaller than the sum of its proper divisors (2534875320).

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

1241202120 is a wasteful number, since it uses less digits than its factorization.

1241202120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145766 (or 145762 counting only the distinct ones).

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

The square root of 1241202120 is about 35230.6985454447. The cubic root of 1241202120 is about 1074.6841314624.

Adding to 1241202120 its reverse (212021421), we get a palindrome (1453223541).

The spelling of 1241202120 in words is "one billion, two hundred forty-one million, two hundred two thousand, one hundred twenty".