1200022122111 has 16 divisors (see below), whose sum is σ = 1622020118016. Its totient is φ = 789020415936.

The previous prime is 1200022122109. The next prime is 1200022122151. The reversal of 1200022122111 is 1112212200021.

It is not a de Polignac number, because 1200022122111 - 2¹ = 1200022122109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200022122151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5352676 + ... + 5572358.

It is an arithmetic number, because the mean of its divisors is an integer number (101376257376).

Almost surely, 2^{1200022122111} is an apocalyptic number.

1200022122111 is a deficient number, since it is larger than the sum of its proper divisors (421997995905).

1200022122111 is a wasteful number, since it uses less digits than its factorization.

1200022122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244702.

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

Adding to 1200022122111 its reverse (1112212200021), we get a palindrome (2312234322132).

The spelling of 1200022122111 in words is "one trillion, two hundred billion, twenty-two million, one hundred twenty-two thousand, one hundred eleven".