222241240890 has 128 divisors (see below), whose sum is σ = 628926923520. Its totient is φ = 55651774464.

The previous prime is 222241240889. The next prime is 222241240919. The reversal of 222241240890 is 98042142222.

222241240890 is a `hidden beast` number, since 2 + 2 + 2 + 241 + 2 + 408 + 9 + 0 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1978722 + ... + 2088018.

It is an arithmetic number, because the mean of its divisors is an integer number (4913491590).

Almost surely, 2^222241240890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222241240890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314463461760).

222241240890 is an abundant number, since it is smaller than the sum of its proper divisors (406685682630).

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

222241240890 is a wasteful number, since it uses less digits than its factorization.

222241240890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109773 (or 109767 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 222241240890 in words is "two hundred twenty-two billion, two hundred forty-one million, two hundred forty thousand, eight hundred ninety".