22451222215446 has 8 divisors (see below), whose sum is σ = 44902444430904. Its totient is φ = 7483740738480.

The previous prime is 22451222215393. The next prime is 22451222215447. The reversal of 22451222215446 is 64451222215422.

It is a sphenic number, since it is the product of 3 distinct primes.

22451222215446 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 22451222215398 and 22451222215407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22451222215447) 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, 1870935184615 + ... + 1870935184626.

It is an arithmetic number, because the mean of its divisors is an integer number (5612805553863).

Almost surely, 2^{22451222215446} is an apocalyptic number.

22451222215446 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22451222215446 is a wasteful number, since it uses less digits than its factorization.

22451222215446 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3741870369246.

The product of its digits is 614400, while the sum is 42.

The spelling of 22451222215446 in words is "twenty-two trillion, four hundred fifty-one billion, two hundred twenty-two million, two hundred fifteen thousand, four hundred forty-six".