1200122121102 has 16 divisors (see below), whose sum is σ = 2401016310480. Its totient is φ = 399912028992.

The previous prime is 1200122121049. The next prime is 1200122121197. The reversal of 1200122121102 is 2011212210021.

It is a congruent number.

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, 32149303 + ... + 32186610.

It is an arithmetic number, because the mean of its divisors is an integer number (150063519405).

Almost surely, 2^{1200122121102} is an apocalyptic number.

1200122121102 is an abundant number, since it is smaller than the sum of its proper divisors (1200894189378).

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

1200122121102 is a wasteful number, since it uses less digits than its factorization.

1200122121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64339027.

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

Adding to 1200122121102 its reverse (2011212210021), we get a palindrome (3211334331123).

The spelling of 1200122121102 in words is "one trillion, two hundred billion, one hundred twenty-two million, one hundred twenty-one thousand, one hundred two".