11122400672221 has 8 divisors (see below), whose sum is σ = 11334310160184. Its totient is φ = 10910567216640.

The previous prime is 11122400672213. The next prime is 11122400672267. The reversal of 11122400672221 is 12227600422111.

It can be written as a sum of positive squares in 4 ways, for example, as 1286838403321 + 9835562268900 = 1134389^2 + 3136170^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11122400672221 - 2³ = 11122400672213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122400672821) 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, 18712696 + ... + 19297921.

It is an arithmetic number, because the mean of its divisors is an integer number (1416788770023).

Almost surely, 2^{11122400672221} is an apocalyptic number.

It is an amenable number.

11122400672221 is a deficient number, since it is larger than the sum of its proper divisors (211909487963).

11122400672221 is an equidigital number, since it uses as much as digits as its factorization.

11122400672221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38016191.

The product of its (nonzero) digits is 5376, while the sum is 31.

The spelling of 11122400672221 in words is "eleven trillion, one hundred twenty-two billion, four hundred million, six hundred seventy-two thousand, two hundred twenty-one".