1021022022222 has 12 divisors (see below), whose sum is σ = 2212214381520. Its totient is φ = 340340674068.

The previous prime is 1021022022203. The next prime is 1021022022227. The reversal of 1021022022222 is 2222202201201.

1021022022222 is a `hidden beast` number, since 10 + 210 + 220 + 2 + 2 + 222 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 56723445679 = 1021022022222 / (1 + 0 + 2 + 1 + 0 + 2 + 2 + 0 + 2 + 2 + 2 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 1021022022195 and 1021022022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021022022227) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28361722822 + ... + 28361722857.

It is an arithmetic number, because the mean of its divisors is an integer number (184351198460).

Almost surely, 2^{1021022022222} is an apocalyptic number.

1021022022222 is an abundant number, since it is smaller than the sum of its proper divisors (1191192359298).

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

1021022022222 is a wasteful number, since it uses less digits than its factorization.

1021022022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56723445687 (or 56723445684 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 1021022022222 its reverse (2222202201201), we get a palindrome (3243224223423).

The spelling of 1021022022222 in words is "one trillion, twenty-one billion, twenty-two million, twenty-two thousand, two hundred twenty-two".