222115040 has 144 divisors (see below), whose sum is σ = 626212944. Its totient is φ = 74188800.

The previous prime is 222115037. The next prime is 222115043. The reversal of 222115040 is 40511222.

222115040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (222115037) and next prime (222115043).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222115043) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321095 + ... + 321785.

It is an arithmetic number, because the mean of its divisors is an integer number (4348701).

Almost surely, 2^222115040 is an apocalyptic number.

222115040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 222115040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (313106472).

222115040 is an abundant number, since it is smaller than the sum of its proper divisors (404097904).

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

222115040 is a wasteful number, since it uses less digits than its factorization.

222115040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 222115040 is about 14903.5244153858. The cubic root of 222115040 is about 605.6094671052.

Adding to 222115040 its reverse (40511222), we get a palindrome (262626262).

The spelling of 222115040 in words is "two hundred twenty-two million, one hundred fifteen thousand, forty".