111121202122 has 64 divisors (see below), whose sum is σ = 200996702208. Its totient is φ = 45045000000.

The previous prime is 111121202113. The next prime is 111121202147. The reversal of 111121202122 is 221202121111.

It is a super-2 number, since 2×111121202122² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111121202096 and 111121202105.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34178997 + ... + 34182247.

It is an arithmetic number, because the mean of its divisors is an integer number (3140573472).

Almost surely, 2^111121202122 is an apocalyptic number.

111121202122 is a deficient number, since it is larger than the sum of its proper divisors (89875500086).

111121202122 is a wasteful number, since it uses less digits than its factorization.

111121202122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4435.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111121202122 its reverse (221202121111), we get a palindrome (332323323233).

The spelling of 111121202122 in words is "one hundred eleven billion, one hundred twenty-one million, two hundred two thousand, one hundred twenty-two".