23202211425551 has 4 divisors (see below), whose sum is σ = 23639988999672. Its totient is φ = 22764433851432.

The previous prime is 23202211425493. The next prime is 23202211425559. The reversal of 23202211425551 is 15552411220232.

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 23202211425551 - 2⁶ = 23202211425487 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 (23202211425559) 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, 218888786981 + ... + 218888787086.

It is an arithmetic number, because the mean of its divisors is an integer number (5909997249918).

Almost surely, 2^{23202211425551} is an apocalyptic number.

23202211425551 is a deficient number, since it is larger than the sum of its proper divisors (437777574121).

23202211425551 is an equidigital number, since it uses as much as digits as its factorization.

23202211425551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437777574120.

The product of its (nonzero) digits is 48000, while the sum is 35.

Adding to 23202211425551 its reverse (15552411220232), we get a palindrome (38754622645783).

The spelling of 23202211425551 in words is "twenty-three trillion, two hundred two billion, two hundred eleven million, four hundred twenty-five thousand, five hundred fifty-one".