1201002111200 has 72 divisors (see below), whose sum is σ = 2980011220200. Its totient is φ = 472525401600.

The previous prime is 1201002111193. The next prime is 1201002111241. The reversal of 1201002111200 is 21112001021.

It is a super-2 number, since 2×1201002111200² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12256550 + ... + 12354149.

It is an arithmetic number, because the mean of its divisors is an integer number (41389044725).

Almost surely, 2^{1201002111200} is an apocalyptic number.

1201002111200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1201002111200 is an abundant number, since it is smaller than the sum of its proper divisors (1779009109000).

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

1201002111200 is a wasteful number, since it uses less digits than its factorization.

1201002111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24610780 (or 24610767 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1201002111200 its reverse (21112001021), we get a palindrome (1222114112221).

The spelling of 1201002111200 in words is "one trillion, two hundred one billion, two million, one hundred eleven thousand, two hundred".