1001200111122 has 16 divisors (see below), whose sum is σ = 2089461101760. Its totient is φ = 319223223792.

The previous prime is 1001200111097. The next prime is 1001200111151. The reversal of 1001200111122 is 2211110021001.

It is a junction number, because it is equal to n+sod(n) for n = 1001200111098 and 1001200111107.

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, 3627536497 + ... + 3627536772.

It is an arithmetic number, because the mean of its divisors is an integer number (130591318860).

Almost surely, 2^{1001200111122} is an apocalyptic number.

1001200111122 is an abundant number, since it is smaller than the sum of its proper divisors (1088260990638).

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

1001200111122 is a wasteful number, since it uses less digits than its factorization.

1001200111122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7255073297.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1001200111122 its reverse (2211110021001), we get a palindrome (3212310132123).

The spelling of 1001200111122 in words is "one trillion, one billion, two hundred million, one hundred eleven thousand, one hundred twenty-two".