1022021221122 has 24 divisors (see below), whose sum is σ = 2415686523120. Its totient is φ = 309703400280.

The previous prime is 1022021221121. The next prime is 1022021221127. The reversal of 1022021221122 is 2211221202201.

It is a happy number.

1022021221122 is a `hidden beast` number, since 1 + 0 + 220 + 212 + 211 + 22 = 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 = 1022021221095 and 1022021221104.

It is not an unprimeable number, because it can be changed into a prime (1022021221121) 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, 2580861472 + ... + 2580861867.

It is an arithmetic number, because the mean of its divisors is an integer number (100653605130).

Almost surely, 2^{1022021221122} is an apocalyptic number.

1022021221122 is an abundant number, since it is smaller than the sum of its proper divisors (1393665301998).

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

1022021221122 is a wasteful number, since it uses less digits than its factorization.

1022021221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5161723358 (or 5161723355 counting only the distinct ones).

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

Adding to 1022021221122 its reverse (2211221202201), we get a palindrome (3233242423323).

The spelling of 1022021221122 in words is "one trillion, twenty-two billion, twenty-one million, two hundred twenty-one thousand, one hundred twenty-two".