1122211101222 has 24 divisors (see below), whose sum is σ = 2432261823264. Its totient is φ = 373946607504.

The previous prime is 1122211101149. The next prime is 1122211101251. The reversal of 1122211101222 is 2221011122211.

1122211101222 is a `hidden beast` number, since 112 + 221 + 110 + 1 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1122211101195 and 1122211101204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10257373 + ... + 10366200.

It is an arithmetic number, because the mean of its divisors is an integer number (101344242636).

Almost surely, 2^{1122211101222} is an apocalyptic number.

1122211101222 is an abundant number, since it is smaller than the sum of its proper divisors (1310050722042).

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

1122211101222 is a wasteful number, since it uses less digits than its factorization.

1122211101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20626604 (or 20626601 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1122211101222 its reverse (2221011122211), we get a palindrome (3343222223433).

The spelling of 1122211101222 in words is "one trillion, one hundred twenty-two billion, two hundred eleven million, one hundred one thousand, two hundred twenty-two".