22142131203451 has 4 divisors (see below), whose sum is σ = 25305292803952. Its totient is φ = 18978969602952.

The previous prime is 22142131203349. The next prime is 22142131203583. The reversal of 22142131203451 is 15430213124122.

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 22142131203451 - 2²⁵ = 22142097649019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22142131203251) 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, 1581580800240 + ... + 1581580800253.

It is an arithmetic number, because the mean of its divisors is an integer number (6326323200988).

Almost surely, 2^{22142131203451} is an apocalyptic number.

22142131203451 is a deficient number, since it is larger than the sum of its proper divisors (3163161600501).

22142131203451 is an equidigital number, since it uses as much as digits as its factorization.

22142131203451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3163161600500.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 22142131203451 its reverse (15430213124122), we get a palindrome (37572344327573).

The spelling of 22142131203451 in words is "twenty-two trillion, one hundred forty-two billion, one hundred thirty-one million, two hundred three thousand, four hundred fifty-one".