1200000011122 has 16 divisors (see below), whose sum is σ = 1965058326144. Its totient is φ = 545059566000.

The previous prime is 1200000011081. The next prime is 1200000011123. The reversal of 1200000011122 is 2211100000021.

It is a junction number, because it is equal to n+sod(n) for n = 1200000011099 and 1200000011108.

It is not an unprimeable number, because it can be changed into a prime (1200000011123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19718154 + ... + 19778917.

It is an arithmetic number, because the mean of its divisors is an integer number (122816145384).

Almost surely, 2^{1200000011122} is an apocalyptic number.

1200000011122 is a deficient number, since it is larger than the sum of its proper divisors (765058315022).

1200000011122 is a wasteful number, since it uses less digits than its factorization.

1200000011122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39498465.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 1200000011122 its reverse (2211100000021), we get a palindrome (3411100011143).

The spelling of 1200000011122 in words is "one trillion, two hundred billion, eleven thousand, one hundred twenty-two".