1122221112001 has 16 divisors (see below), whose sum is σ = 1231419163968. Its totient is φ = 1014220360000.

The previous prime is 1122221111983. The next prime is 1122221112011. The reversal of 1122221112001 is 1002111222211.

It is a cyclic number.

It is not a de Polignac number, because 1122221112001 - 2³³ = 1113631177409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1122221112011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46137495 + ... + 46161811.

It is an arithmetic number, because the mean of its divisors is an integer number (76963697748).

Almost surely, 2^{1122221112001} is an apocalyptic number.

1122221112001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1122221112001 is a deficient number, since it is larger than the sum of its proper divisors (109198051967).

1122221112001 is a wasteful number, since it uses less digits than its factorization.

1122221112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48752.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 1122221112001 its reverse (1002111222211), we get a palindrome (2124332334212).

The spelling of 1122221112001 in words is "one trillion, one hundred twenty-two billion, two hundred twenty-one million, one hundred twelve thousand, one".