222996998 has 8 divisors (see below), whose sum is σ = 382280592. Its totient is φ = 95570136.

The previous prime is 222996997. The next prime is 222997001. The reversal of 222996998 is 899699222.

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

It is a super-2 number, since 2×222996998² = 99455322234024008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222996997) 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, 7964165 + ... + 7964192.

It is an arithmetic number, because the mean of its divisors is an integer number (47785074).

Almost surely, 2^222996998 is an apocalyptic number.

222996998 is a deficient number, since it is larger than the sum of its proper divisors (159283594).

222996998 is a wasteful number, since it uses less digits than its factorization.

222996998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15928366.

The product of its digits is 2519424, while the sum is 56.

The square root of 222996998 is about 14933.0840083353. The cubic root of 222996998 is about 606.4099782861.

It can be divided in two parts, 22 and 2996998, that multiplied together give a palindrome (65933956).

The spelling of 222996998 in words is "two hundred twenty-two million, nine hundred ninety-six thousand, nine hundred ninety-eight".