1220102312022 has 144 divisors (see below), whose sum is σ = 3034032739920. Its totient is φ = 353640524160.

The previous prime is 1220102311921. The next prime is 1220102312027. The reversal of 1220102312022 is 2202132010221.

1220102312022 is a `hidden beast` number, since 1 + 220 + 10 + 231 + 202 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1220102311986 and 1220102312004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220102312027) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 6668068 + ... + 6848600.

It is an arithmetic number, because the mean of its divisors is an integer number (21069671805).

Almost surely, 2^{1220102312022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1220102312022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1517016369960).

1220102312022 is an abundant number, since it is smaller than the sum of its proper divisors (1813930427898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1220102312022 is a wasteful number, since it uses less digits than its factorization.

1220102312022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180699 (or 180685 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1220102312022 its reverse (2202132010221), we get a palindrome (3422234322243).

The spelling of 1220102312022 in words is "one trillion, two hundred twenty billion, one hundred two million, three hundred twelve thousand, twenty-two".