111202221221122 has 4 divisors (see below), whose sum is σ = 166803331831686. Its totient is φ = 55601110610560.

The previous prime is 111202221221107. The next prime is 111202221221131. The reversal of 111202221221122 is 221122122202111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 74695381737201 + 36506839483921 = 8642649^2 + 6042089^2 .

It is a super-2 number, since 2×111202221221122² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111202221221093 and 111202221221102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27800555305279 + ... + 27800555305282.

Almost surely, 2^{111202221221122} is an apocalyptic number.

111202221221122 is a deficient number, since it is larger than the sum of its proper divisors (55601110610564).

111202221221122 is an equidigital number, since it uses as much as digits as its factorization.

111202221221122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55601110610563.

The product of its (nonzero) digits is 256, while the sum is 22.

Adding to 111202221221122 its reverse (221122122202111), we get a palindrome (332324343423233).

The spelling of 111202221221122 in words is "one hundred eleven trillion, two hundred two billion, two hundred twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".