111201210021122 has 32 divisors (see below), whose sum is σ = 183833171461632. Its totient is φ = 50123805467904.

The previous prime is 111201210021113. The next prime is 111201210021127. The reversal of 111201210021122 is 221120012102111.

It is a super-2 number, since 2×111201210021122² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111201210021122.

It is not an unprimeable number, because it can be changed into a prime (111201210021127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2759663 + ... + 15166349.

It is an arithmetic number, because the mean of its divisors is an integer number (5744786608176).

Almost surely, 2^{111201210021122} is an apocalyptic number.

111201210021122 is a deficient number, since it is larger than the sum of its proper divisors (72631961440510).

111201210021122 is a wasteful number, since it uses less digits than its factorization.

111201210021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12414762.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111201210021122 its reverse (221120012102111), we get a palindrome (332321222123233).

The spelling of 111201210021122 in words is "one hundred eleven trillion, two hundred one billion, two hundred ten million, twenty-one thousand, one hundred twenty-two".