222401154 has 16 divisors (see below), whose sum is σ = 456824448. Its totient is φ = 72130032.

The previous prime is 222401131. The next prime is 222401159. The reversal of 222401154 is 451104222.

It is a self number, because there is not a number n which added to its sum of digits gives 222401154.

It is not an unprimeable number, because it can be changed into a prime (222401159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500682 + ... + 501125.

It is an arithmetic number, because the mean of its divisors is an integer number (28551528).

Almost surely, 2^222401154 is an apocalyptic number.

222401154 is an abundant number, since it is smaller than the sum of its proper divisors (234423294).

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

222401154 is a wasteful number, since it uses less digits than its factorization.

222401154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001849.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 222401154 is about 14913.1201966590. The cubic root of 222401154 is about 605.8693909725.

Adding to 222401154 its reverse (451104222), we get a palindrome (673505376).

The spelling of 222401154 in words is "two hundred twenty-two million, four hundred one thousand, one hundred fifty-four".