222198647451 has 16 divisors (see below), whose sum is σ = 323319800448. Its totient is φ = 134615110400.

The previous prime is 222198647443. The next prime is 222198647471. The reversal of 222198647451 is 154746891222.

It is a happy number.

222198647451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 222198647451 - 2³ = 222198647443 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222198647394 and 222198647403.

It is not an unprimeable number, because it can be changed into a prime (222198647431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1179405 + ... + 1354766.

It is an arithmetic number, because the mean of its divisors is an integer number (20207487528).

Almost surely, 2^222198647451 is an apocalyptic number.

222198647451 is a deficient number, since it is larger than the sum of its proper divisors (101121152997).

222198647451 is a wasteful number, since it uses less digits than its factorization.

222198647451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2536842.

The product of its digits is 1935360, while the sum is 51.

The spelling of 222198647451 in words is "two hundred twenty-two billion, one hundred ninety-eight million, six hundred forty-seven thousand, four hundred fifty-one".