1220032211231 has 2 divisors, whose sum is σ = 1220032211232. Its totient is φ = 1220032211230.

The previous prime is 1220032211219. The next prime is 1220032211257. The reversal of 1220032211231 is 1321122300221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1220032211231 - 2¹⁴ = 1220032194847 is a prime.

It is a super-2 number, since 2×1220032211231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220032211291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610016105615 + 610016105616.

It is an arithmetic number, because the mean of its divisors is an integer number (610016105616).

Almost surely, 2^{1220032211231} is an apocalyptic number.

1220032211231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220032211231 is an equidigital number, since it uses as much as digits as its factorization.

1220032211231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1220032211231 its reverse (1321122300221), we get a palindrome (2541154511452).

The spelling of 1220032211231 in words is "one trillion, two hundred twenty billion, thirty-two million, two hundred eleven thousand, two hundred thirty-one".