1222110110021 has 16 divisors (see below), whose sum is σ = 1251922573440. Its totient is φ = 1192675491840.

The previous prime is 1222110109993. The next prime is 1222110110059. The reversal of 1222110110021 is 1200110112221.

It is a cyclic number.

It is not a de Polignac number, because 1222110110021 - 2²² = 1222105915717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222110109978 and 1222110110005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222110112021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6070646 + ... + 6268728.

It is an arithmetic number, because the mean of its divisors is an integer number (78245160840).

Almost surely, 2^{1222110110021} is an apocalyptic number.

It is an amenable number.

1222110110021 is a deficient number, since it is larger than the sum of its proper divisors (29812463419).

1222110110021 is a wasteful number, since it uses less digits than its factorization.

1222110110021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199036.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 1222110110021 its reverse (1200110112221), we get a palindrome (2422220222242).

The spelling of 1222110110021 in words is "one trillion, two hundred twenty-two billion, one hundred ten million, one hundred ten thousand, twenty-one".