22621102247 has 4 divisors (see below), whose sum is σ = 22635956760. Its totient is φ = 22606247736.

The previous prime is 22621102237. The next prime is 22621102253. The reversal of 22621102247 is 74220112622.

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

It is a cyclic number.

It is not a de Polignac number, because 22621102247 - 2⁸ = 22621101991 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 (22621102237) 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, 7424972 + ... + 7428017.

It is an arithmetic number, because the mean of its divisors is an integer number (5658989190).

Almost surely, 2^22621102247 is an apocalyptic number.

22621102247 is a deficient number, since it is larger than the sum of its proper divisors (14854513).

22621102247 is a wasteful number, since it uses less digits than its factorization.

22621102247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14854512.

The product of its (nonzero) digits is 5376, while the sum is 29.

Adding to 22621102247 its reverse (74220112622), we get a palindrome (96841214869).

The spelling of 22621102247 in words is "twenty-two billion, six hundred twenty-one million, one hundred two thousand, two hundred forty-seven".