111221211122022 has 32 divisors (see below), whose sum is σ = 222647967618048. Its totient is φ = 37039480652736.

The previous prime is 111221211122011. The next prime is 111221211122053. The reversal of 111221211122022 is 220221112122111.

It is a self number, because there is not a number n which added to its sum of digits gives 111221211122022.

It is a congruent 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, 519756783 + ... + 519970725.

It is an arithmetic number, because the mean of its divisors is an integer number (6957748988064).

Almost surely, 2^{111221211122022} is an apocalyptic number.

111221211122022 is an abundant number, since it is smaller than the sum of its proper divisors (111426756496026).

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

111221211122022 is a wasteful number, since it uses less digits than its factorization.

111221211122022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293604.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 111221211122022 its reverse (220221112122111), we get a palindrome (331442323244133).

The spelling of 111221211122022 in words is "one hundred eleven trillion, two hundred twenty-one billion, two hundred eleven million, one hundred twenty-two thousand, twenty-two".