1023222022221 has 32 divisors (see below), whose sum is σ = 1564605849600. Its totient is φ = 582671635200.

The previous prime is 1023222022187. The next prime is 1023222022241. The reversal of 1023222022221 is 1222202223201.

It is not a de Polignac number, because 1023222022221 - 2⁹ = 1023222021709 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1023222022241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11179996 + ... + 11271146.

It is an arithmetic number, because the mean of its divisors is an integer number (48893932800).

Almost surely, 2^{1023222022221} is an apocalyptic number.

It is an amenable number.

1023222022221 is a deficient number, since it is larger than the sum of its proper divisors (541383827379).

1023222022221 is a wasteful number, since it uses less digits than its factorization.

1023222022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93009.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1023222022221 its reverse (1222202223201), we get a palindrome (2245424245422).

The spelling of 1023222022221 in words is "one trillion, twenty-three billion, two hundred twenty-two million, twenty-two thousand, two hundred twenty-one".