1220112100011 has 48 divisors (see below), whose sum is σ = 1952778266880. Its totient is φ = 675147856320.

The previous prime is 1220112099977. The next prime is 1220112100027. The reversal of 1220112100011 is 1100012110221.

It is not a de Polignac number, because 1220112100011 - 2³⁵ = 1185752361643 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1220112100011.

It is not an unprimeable number, because it can be changed into a prime (1220112000011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 616050 + ... + 1679208.

It is an arithmetic number, because the mean of its divisors is an integer number (40682880560).

Almost surely, 2^{1220112100011} is an apocalyptic number.

1220112100011 is a deficient number, since it is larger than the sum of its proper divisors (732666166869).

1220112100011 is a wasteful number, since it uses less digits than its factorization.

1220112100011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063424 (or 1063417 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 1220112100011 its reverse (1100012110221), we get a palindrome (2320124210232).

The spelling of 1220112100011 in words is "one trillion, two hundred twenty billion, one hundred twelve million, one hundred thousand, eleven".