1222312132221 has 16 divisors (see below), whose sum is σ = 1685030352000. Its totient is φ = 787529953728.

The previous prime is 1222312132207. The next prime is 1222312132259.

1222312132221 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 1222312132221 - 2⁶ = 1222312132157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222312132191 and 1222312132200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222312131221) 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, 36935881 + ... + 36968958.

It is an arithmetic number, because the mean of its divisors is an integer number (105314397000).

Almost surely, 2^{1222312132221} is an apocalyptic number.

It is an amenable number.

1222312132221 is a deficient number, since it is larger than the sum of its proper divisors (462718219779).

1222312132221 is a wasteful number, since it uses less digits than its factorization.

1222312132221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73905028.

The product of its digits is 1152, while the sum is 24.

The spelling of 1222312132221 in words is "one trillion, two hundred twenty-two billion, three hundred twelve million, one hundred thirty-two thousand, two hundred twenty-one".