1220222220031 has 2 divisors, whose sum is σ = 1220222220032. Its totient is φ = 1220222220030.

The previous prime is 1220222219989. The next prime is 1220222220053. The reversal of 1220222220031 is 1300222220221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220222220031 - 2¹⁷ = 1220222088959 is a prime.

It is a super-2 number, since 2×1220222220031² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1220222219990 and 1220222220008.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1220222280031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610111110015 + 610111110016.

It is an arithmetic number, because the mean of its divisors is an integer number (610111110016).

Almost surely, 2^{1220222220031} is an apocalyptic number.

1220222220031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220222220031 is an equidigital number, since it uses as much as digits as its factorization.

1220222220031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 1220222220031 its reverse (1300222220221), we get a palindrome (2520444440252).

The spelling of 1220222220031 in words is "one trillion, two hundred twenty billion, two hundred twenty-two million, two hundred twenty thousand, thirty-one".