1211100116136 has 32 divisors (see below), whose sum is σ = 3029100291360. Its totient is φ = 403520038592.

The previous prime is 1211100116059. The next prime is 1211100116137. The reversal of 1211100116136 is 6316110011121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1211100116137) 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, 11195055 + ... + 11302718.

It is an arithmetic number, because the mean of its divisors is an integer number (94659384105).

Almost surely, 2^{1211100116136} is an apocalyptic number.

It is an amenable number.

1211100116136 is an abundant number, since it is smaller than the sum of its proper divisors (1818000175224).

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

1211100116136 is a wasteful number, since it uses less digits than its factorization.

1211100116136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22500025 (or 22500021 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 24.

Adding to 1211100116136 its reverse (6316110011121), we get a palindrome (7527210127257).

The spelling of 1211100116136 in words is "one trillion, two hundred eleven billion, one hundred million, one hundred sixteen thousand, one hundred thirty-six".