1122202221111 has 24 divisors (see below), whose sum is σ = 1665426868560. Its totient is φ = 727872523776.

The previous prime is 1122202221079. The next prime is 1122202221113. The reversal of 1122202221111 is 1111222022211.

1122202221111 is a `hidden beast` number, since 112 + 220 + 2 + 221 + 111 = 666.

It is not a de Polignac number, because 1122202221111 - 2⁵ = 1122202221079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122202221113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10842180 + ... + 10945193.

It is an arithmetic number, because the mean of its divisors is an integer number (69392786190).

Almost surely, 2^{1122202221111} is an apocalyptic number.

1122202221111 is a deficient number, since it is larger than the sum of its proper divisors (543224647449).

1122202221111 is a wasteful number, since it uses less digits than its factorization.

1122202221111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21787535 (or 21787532 counting only the distinct ones).

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

Adding to 1122202221111 its reverse (1111222022211), we get a palindrome (2233424243322).

It can be divided in two parts, 11222022211 and 11, that multiplied together give a palindrome (123442244321).

The spelling of 1122202221111 in words is "one trillion, one hundred twenty-two billion, two hundred two million, two hundred twenty-one thousand, one hundred eleven".