1220101022331 has 8 divisors (see below), whose sum is σ = 1807557070160. Its totient is φ = 813400681536.

The previous prime is 1220101022321. The next prime is 1220101022369. The reversal of 1220101022331 is 1332201010221.

1220101022331 is a `hidden beast` number, since 1 + 220 + 10 + 102 + 2 + 331 = 666.

It is not a de Polignac number, because 1220101022331 - 2²⁷ = 1219966804603 is a prime.

It is a super-2 number, since 2×1220101022331² (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 (1220101022321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22594463350 + ... + 22594463403.

It is an arithmetic number, because the mean of its divisors is an integer number (225944633770).

Almost surely, 2^{1220101022331} is an apocalyptic number.

1220101022331 is a deficient number, since it is larger than the sum of its proper divisors (587456047829).

1220101022331 is an equidigital number, since it uses as much as digits as its factorization.

1220101022331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45188926762 (or 45188926756 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 1220101022331 its reverse (1332201010221), we get a palindrome (2552302032552).

The spelling of 1220101022331 in words is "one trillion, two hundred twenty billion, one hundred one million, twenty-two thousand, three hundred thirty-one".