1122102111221 has 32 divisors (see below), whose sum is σ = 1429086489600. Its totient is φ = 856953457920.

The previous prime is 1122102111217. The next prime is 1122102111239. The reversal of 1122102111221 is 1221112012211.

It is not a de Polignac number, because 1122102111221 - 2² = 1122102111217 is a prime.

It is a super-2 number, since 2×1122102111221² (a number of 25 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 1122102111221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122102111211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9284660 + ... + 9404738.

It is an arithmetic number, because the mean of its divisors is an integer number (44658952800).

Almost surely, 2^{1122102111221} is an apocalyptic number.

It is an amenable number.

1122102111221 is a deficient number, since it is larger than the sum of its proper divisors (306984378379).

1122102111221 is a wasteful number, since it uses less digits than its factorization.

1122102111221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123669.

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

Adding to 1122102111221 its reverse (1221112012211), we get a palindrome (2343214123432).

The spelling of 1122102111221 in words is "one trillion, one hundred twenty-two billion, one hundred two million, one hundred eleven thousand, two hundred twenty-one".