10331022122221 has 4 divisors (see below), whose sum is σ = 10331114369500. Its totient is φ = 10330929874944.

The previous prime is 10331022122219. The next prime is 10331022122261. The reversal of 10331022122221 is 12222122013301.

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 1393828166025 + 8937193956196 = 1180605^2 + 2989514^2 .

It is a cyclic number.

It is not a de Polignac number, because 10331022122221 - 2¹ = 10331022122219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10331022122192 and 10331022122201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10331022122261) 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, 45955446 + ... + 46179703.

It is an arithmetic number, because the mean of its divisors is an integer number (2582778592375).

Almost surely, 2^{10331022122221} is an apocalyptic number.

It is an amenable number.

10331022122221 is a deficient number, since it is larger than the sum of its proper divisors (92247279).

10331022122221 is an equidigital number, since it uses as much as digits as its factorization.

10331022122221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92247278.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 10331022122221 its reverse (12222122013301), we get a palindrome (22553144135522).

The spelling of 10331022122221 in words is "ten trillion, three hundred thirty-one billion, twenty-two million, one hundred twenty-two thousand, two hundred twenty-one".