1122210222021 has 18 divisors (see below), whose sum is σ = 1885618537062. Its totient is φ = 641262983760.

The previous prime is 1122210221999. The next prime is 1122210222073. The reversal of 1122210222021 is 1202220122211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 835787237796 + 286422984225 = 914214^2 + 535185^2 .

It is not a de Polignac number, because 1122210222021 - 2⁵ = 1122210221989 is a prime.

It is a super-2 number, since 2×1122210222021² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1122210221985 and 1122210222003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122210221021) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1272346750 + ... + 1272347631.

Almost surely, 2^{1122210222021} is an apocalyptic number.

It is an amenable number.

1122210222021 is a deficient number, since it is larger than the sum of its proper divisors (763408315041).

1122210222021 is a wasteful number, since it uses less digits than its factorization.

1122210222021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2544694401 (or 2544694391 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1122210222021 its reverse (1202220122211), we get a palindrome (2324430344232).

The spelling of 1122210222021 in words is "one trillion, one hundred twenty-two billion, two hundred ten million, two hundred twenty-two thousand, twenty-one".