1022221211022 has 36 divisors (see below), whose sum is σ = 2434463467800. Its totient is φ = 309764002680.

The previous prime is 1022221211009. The next prime is 1022221211023. The reversal of 1022221211022 is 2201121222201.

It is a happy number.

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 = 1022221210986 and 1022221211004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022221211023) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 234667522 + ... + 234671877.

Almost surely, 2^{1022221211022} is an apocalyptic number.

1022221211022 is an abundant number, since it is smaller than the sum of its proper divisors (1412242256778).

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

1022221211022 is a wasteful number, since it uses less digits than its factorization.

1022221211022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 469339429 (or 469339415 counting only the distinct ones).

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

Adding to 1022221211022 its reverse (2201121222201), we get a palindrome (3223342433223).

The spelling of 1022221211022 in words is "one trillion, twenty-two billion, two hundred twenty-one million, two hundred eleven thousand, twenty-two".