1022221020121 has 8 divisors (see below), whose sum is σ = 1168258732160. Its totient is φ = 876184842528.

The previous prime is 1022221020113. The next prime is 1022221020167. The reversal of 1022221020121 is 1210201222201.

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 1022221020121 - 2³ = 1022221020113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1022221020095 and 1022221020104.

It is not an unprimeable number, because it can be changed into a prime (1022221026121) 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, 2242060 + ... + 2659186.

It is an arithmetic number, because the mean of its divisors is an integer number (146032341520).

Almost surely, 2^{1022221020121} is an apocalyptic number.

It is an amenable number.

1022221020121 is a deficient number, since it is larger than the sum of its proper divisors (146037712039).

1022221020121 is an equidigital number, since it uses as much as digits as its factorization.

1022221020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 767223.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1022221020121 its reverse (1210201222201), we get a palindrome (2232422242322).

The spelling of 1022221020121 in words is "one trillion, twenty-two billion, two hundred twenty-one million, twenty thousand, one hundred twenty-one".