1121656201115 has 16 divisors (see below), whose sum is σ = 1353274251552. Its totient is φ = 892475026944.

The previous prime is 1121656201031. The next prime is 1121656201121. The reversal of 1121656201115 is 5111026561211.

It is a cyclic number.

It is not a de Polignac number, because 1121656201115 - 2²⁰ = 1121655152539 is a prime.

It is a super-2 number, since 2×1121656201115² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635987 + ... + 1627203.

It is an arithmetic number, because the mean of its divisors is an integer number (84579640722).

Almost surely, 2^{1121656201115} is an apocalyptic number.

1121656201115 is a deficient number, since it is larger than the sum of its proper divisors (231618050437).

1121656201115 is an equidigital number, since it uses as much as digits as its factorization.

1121656201115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 992446.

The product of its (nonzero) digits is 3600, while the sum is 32.

The spelling of 1121656201115 in words is "one trillion, one hundred twenty-one billion, six hundred fifty-six million, two hundred one thousand, one hundred fifteen".