1122102212221 has 4 divisors (see below), whose sum is σ = 1124505001152. Its totient is φ = 1119699423292.

The previous prime is 1122102212201. The next prime is 1122102212233. The reversal of 1122102212221 is 1222122012211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1122102212221 - 2¹⁵ = 1122102179453 is a prime.

It is a super-2 number, since 2×1122102212221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122102212201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1201393765 + ... + 1201394698.

It is an arithmetic number, because the mean of its divisors is an integer number (281126250288).

Almost surely, 2^{1122102212221} is an apocalyptic number.

It is an amenable number.

1122102212221 is a deficient number, since it is larger than the sum of its proper divisors (2402788931).

1122102212221 is an equidigital number, since it uses as much as digits as its factorization.

1122102212221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2402788930.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 1122102212221 its reverse (1222122012211), we get a palindrome (2344224224432).

The spelling of 1122102212221 in words is "one trillion, one hundred twenty-two billion, one hundred two million, two hundred twelve thousand, two hundred twenty-one".