1222220031011 has 12 divisors (see below), whose sum is σ = 1445073804000. Its totient is φ = 1030443114960.

The previous prime is 1222220031001. The next prime is 1222220031049. The reversal of 1222220031011 is 1101300222221.

It is not a de Polignac number, because 1222220031011 - 2²² = 1222215836707 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222220031001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204450011 + ... + 204455988.

It is an arithmetic number, because the mean of its divisors is an integer number (120422817000).

Almost surely, 2^{1222220031011} is an apocalyptic number.

1222220031011 is a deficient number, since it is larger than the sum of its proper divisors (222853772989).

1222220031011 is an equidigital number, since it uses as much as digits as its factorization.

1222220031011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 408906074 (or 408906067 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 1222220031011 its reverse (1101300222221), we get a palindrome (2323520253232).

The spelling of 1222220031011 in words is "one trillion, two hundred twenty-two billion, two hundred twenty million, thirty-one thousand, eleven".