1001202112122 has 16 divisors (see below), whose sum is σ = 2089465277760. Its totient is φ = 319223861792.

The previous prime is 1001202112111. The next prime is 1001202112219. The reversal of 1001202112122 is 2212112021001.

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, 3627543747 + ... + 3627544022.

It is an arithmetic number, because the mean of its divisors is an integer number (130591579860).

Almost surely, 2^{1001202112122} is an apocalyptic number.

1001202112122 is an abundant number, since it is smaller than the sum of its proper divisors (1088263165638).

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

1001202112122 is a wasteful number, since it uses less digits than its factorization.

1001202112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7255087797.

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

Adding to 1001202112122 its reverse (2212112021001), we get a palindrome (3213314133123).

The spelling of 1001202112122 in words is "one trillion, one billion, two hundred two million, one hundred twelve thousand, one hundred twenty-two".