1211112104 has 32 divisors (see below), whose sum is σ = 2383326720. Its totient is φ = 575864256.

The previous prime is 1211112103. The next prime is 1211112139. The reversal of 1211112104 is 4012111121.

It is not an unprimeable number, because it can be changed into a prime (1211112101) 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, 12809 + ... + 50855.

It is an arithmetic number, because the mean of its divisors is an integer number (74478960).

Almost surely, 2^1211112104 is an apocalyptic number.

It is an amenable number.

1211112104 is a deficient number, since it is larger than the sum of its proper divisors (1172214616).

1211112104 is a wasteful number, since it uses less digits than its factorization.

1211112104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38249 (or 38245 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

The square root of 1211112104 is about 34801.0359615917. The cubic root of 1211112104 is about 1065.9285997513.

Adding to 1211112104 its reverse (4012111121), we get a palindrome (5223223225).

The spelling of 1211112104 in words is "one billion, two hundred eleven million, one hundred twelve thousand, one hundred four".