1022221121022 has 24 divisors (see below), whose sum is σ = 2226408312960. Its totient is φ = 338956391520.

The previous prime is 1022221120979. The next prime is 1022221121029. The reversal of 1022221121022 is 2201211222201.

It is a happy number.

1022221121022 is a `hidden beast` number, since 1 + 0 + 222 + 211 + 210 + 22 = 666.

1022221121022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 1022221120986 and 1022221121004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022221121029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 148661647 + ... + 148668522.

It is an arithmetic number, because the mean of its divisors is an integer number (92767013040).

Almost surely, 2^{1022221121022} is an apocalyptic number.

1022221121022 is an abundant number, since it is smaller than the sum of its proper divisors (1204187191938).

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

1022221121022 is a wasteful number, since it uses less digits than its factorization.

1022221121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297330368 (or 297330365 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 1022221121022 its reverse (2201211222201), we get a palindrome (3223432343223).

The spelling of 1022221121022 in words is "one trillion, twenty-two billion, two hundred twenty-one million, one hundred twenty-one thousand, twenty-two".