1200111100112 has 40 divisors (see below), whose sum is σ = 2327340832320. Its totient is φ = 599507274240.

The previous prime is 1200111100079. The next prime is 1200111100129. The reversal of 1200111100112 is 2110011110021.

It is a super-2 number, since 2×1200111100112² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1200111100093 and 1200111100102.

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, 116635064 + ... + 116645352.

It is an arithmetic number, because the mean of its divisors is an integer number (58183520808).

Almost surely, 2^{1200111100112} is an apocalyptic number.

It is an amenable number.

1200111100112 is a deficient number, since it is larger than the sum of its proper divisors (1127229732208).

1200111100112 is a wasteful number, since it uses less digits than its factorization.

1200111100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16251 (or 16245 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 1200111100112 its reverse (2110011110021), we get a palindrome (3310122210133).

Subtracting 1200111100112 from its reverse (2110011110021), we obtain a palindrome (909900009909).

The spelling of 1200111100112 in words is "one trillion, two hundred billion, one hundred eleven million, one hundred thousand, one hundred twelve".