1020221022222 has 40 divisors (see below), whose sum is σ = 2286131105016. Its totient is φ = 340061729328.

The previous prime is 1020221022211. The next prime is 1020221022239. The reversal of 1020221022222 is 2222201220201.

1020221022222 is a `hidden beast` number, since 10 + 202 + 210 + 22 + 222 = 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 = 1020221022195 and 1020221022204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5343388 + ... + 5531024.

Almost surely, 2^{1020221022222} is an apocalyptic number.

1020221022222 is an abundant number, since it is smaller than the sum of its proper divisors (1265910082794).

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

1020221022222 is a wasteful number, since it uses less digits than its factorization.

1020221022222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221214 (or 221205 counting only the distinct ones).

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

Adding to 1020221022222 its reverse (2222201220201), we get a palindrome (3242422242423).

The spelling of 1020221022222 in words is "one trillion, twenty billion, two hundred twenty-one million, twenty-two thousand, two hundred twenty-two".