1022222020121 has 8 divisors (see below), whose sum is σ = 1022702647200. Its totient is φ = 1021741490880.

The previous prime is 1022222020093. The next prime is 1022222020123. The reversal of 1022222020121 is 1210202222201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1022222020121 - 2²⁶ = 1022154911257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022222020121.

It is not an unprimeable number, because it can be changed into a prime (1022222020123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27965585 + ... + 28002113.

It is an arithmetic number, because the mean of its divisors is an integer number (127837830900).

Almost surely, 2^{1022222020121} is an apocalyptic number.

It is an amenable number.

1022222020121 is a deficient number, since it is larger than the sum of its proper divisors (480627079).

1022222020121 is an equidigital number, since it uses as much as digits as its factorization.

1022222020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48919.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1022222020121 its reverse (1210202222201), we get a palindrome (2232424242322).

The spelling of 1022222020121 in words is "one trillion, twenty-two billion, two hundred twenty-two million, twenty thousand, one hundred twenty-one".