1200121122102 has 24 divisors (see below), whose sum is σ = 2792118529656. Its totient is φ = 342891749088.

The previous prime is 1200121122089. The next prime is 1200121122127. The reversal of 1200121122102 is 2012211210021.

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, 2041022023 + ... + 2041022610.

It is an arithmetic number, because the mean of its divisors is an integer number (116338272069).

Almost surely, 2^{1200121122102} is an apocalyptic number.

1200121122102 is an abundant number, since it is smaller than the sum of its proper divisors (1591997407554).

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

1200121122102 is a wasteful number, since it uses less digits than its factorization.

1200121122102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4082044652 (or 4082044645 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 1200121122102 its reverse (2012211210021), we get a palindrome (3212332332123).

The spelling of 1200121122102 in words is "one trillion, two hundred billion, one hundred twenty-one million, one hundred twenty-two thousand, one hundred two".