1022110010221 has 4 divisors (see below), whose sum is σ = 1022127125500. Its totient is φ = 1022092894944.

The previous prime is 1022110010179. The next prime is 1022110010269. The reversal of 1022110010221 is 1220100112201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 377524224900 + 644585785321 = 614430^2 + 802861^2 .

It is a cyclic number.

It is not a de Polignac number, because 1022110010221 - 2²³ = 1022101621613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022110010291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8467746 + ... + 8587603.

It is an arithmetic number, because the mean of its divisors is an integer number (255531781375).

Almost surely, 2^{1022110010221} is an apocalyptic number.

It is an amenable number.

1022110010221 is a deficient number, since it is larger than the sum of its proper divisors (17115279).

1022110010221 is an equidigital number, since it uses as much as digits as its factorization.

1022110010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17115278.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1022110010221 its reverse (1220100112201), we get a palindrome (2242210122422).

The spelling of 1022110010221 in words is "one trillion, twenty-two billion, one hundred ten million, ten thousand, two hundred twenty-one".