1200102220120 has 64 divisors (see below), whose sum is σ = 2737508231520. Its totient is φ = 473415035904.

The previous prime is 1200102220111. The next prime is 1200102220147. The reversal of 1200102220120 is 210222010021.

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 1200102220120.

It is a congruent number.

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, 40856559 + ... + 40885921.

Almost surely, 2^{1200102220120} is an apocalyptic number.

1200102220120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200102220120 is an abundant number, since it is smaller than the sum of its proper divisors (1537406011400).

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

1200102220120 is a wasteful number, since it uses less digits than its factorization.

1200102220120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43444 (or 43440 counting only the distinct ones).

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

Adding to 1200102220120 its reverse (210222010021), we get a palindrome (1410324230141).

The spelling of 1200102220120 in words is "one trillion, two hundred billion, one hundred two million, two hundred twenty thousand, one hundred twenty".