1222031331211 has 16 divisors (see below), whose sum is σ = 1243079712000. Its totient is φ = 1201188816000.

The previous prime is 1222031331197. The next prime is 1222031331277. The reversal of 1222031331211 is 1121331302221.

It is a cyclic number.

It is not a de Polignac number, because 1222031331211 - 2⁵ = 1222031331179 is a prime.

It is a super-2 number, since 2×1222031331211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1222031331011) 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, 7996326 + ... + 8147716.

It is an arithmetic number, because the mean of its divisors is an integer number (77692482000).

Almost surely, 2^{1222031331211} is an apocalyptic number.

1222031331211 is a deficient number, since it is larger than the sum of its proper divisors (21048380789).

1222031331211 is a wasteful number, since it uses less digits than its factorization.

1222031331211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152070.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1222031331211 its reverse (1121331302221), we get a palindrome (2343362633432).

The spelling of 1222031331211 in words is "one trillion, two hundred twenty-two billion, thirty-one million, three hundred thirty-one thousand, two hundred eleven".