1022220021222 has 24 divisors (see below), whose sum is σ = 2296840048776. Its totient is φ = 340740006912.

The previous prime is 1022220021139. The next prime is 1022220021253. The reversal of 1022220021222 is 2221200222201.

1022220021222 is a `hidden beast` number, since 1 + 0 + 222 + 200 + 21 + 222 = 666.

It is a super-2 number, since 2×1022220021222² (a number of 25 digits) contains 22 as substring.

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 = 1022220021195 and 1022220021204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1051666203 + ... + 1051667174.

It is an arithmetic number, because the mean of its divisors is an integer number (95701668699).

Almost surely, 2^{1022220021222} is an apocalyptic number.

1022220021222 is an abundant number, since it is smaller than the sum of its proper divisors (1274620027554).

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

1022220021222 is an equidigital number, since it uses as much as digits as its factorization.

1022220021222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2103333394 (or 2103333382 counting only the distinct ones).

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

Adding to 1022220021222 its reverse (2221200222201), we get a palindrome (3243420243423).

The spelling of 1022220021222 in words is "one trillion, twenty-two billion, two hundred twenty million, twenty-one thousand, two hundred twenty-two".