2264664222221 has 4 divisors (see below), whose sum is σ = 2264673753600. Its totient is φ = 2264654690844.

The previous prime is 2264664222209. The next prime is 2264664222311. The reversal of 2264664222221 is 1222224664622.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2264664222221 - 2¹⁸ = 2264663960077 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 (2264664122221) 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, 4399931 + ... + 4887608.

It is an arithmetic number, because the mean of its divisors is an integer number (566168438400).

Almost surely, 2^{2264664222221} is an apocalyptic number.

It is an amenable number.

2264664222221 is a deficient number, since it is larger than the sum of its proper divisors (9531379).

2264664222221 is an equidigital number, since it uses as much as digits as its factorization.

2264664222221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9531378.

The product of its digits is 442368, while the sum is 41.

Adding to 2264664222221 its reverse (1222224664622), we get a palindrome (3486888886843).

The spelling of 2264664222221 in words is "two trillion, two hundred sixty-four billion, six hundred sixty-four million, two hundred twenty-two thousand, two hundred twenty-one".