222122140 has 24 divisors (see below), whose sum is σ = 466925760. Its totient is φ = 88759488.

The previous prime is 222122081. The next prime is 222122149. The reversal of 222122140 is 41221222.

222122140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222122149) 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, 17026 + ... + 27094.

It is an arithmetic number, because the mean of its divisors is an integer number (19455240).

Almost surely, 2^222122140 is an apocalyptic number.

222122140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222122140 is an abundant number, since it is smaller than the sum of its proper divisors (244803620).

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

222122140 is a wasteful number, since it uses less digits than its factorization.

222122140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11181 (or 11179 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 222122140 is about 14903.7626121728. The cubic root of 222122140 is about 605.6159198897.

Adding to 222122140 its reverse (41221222), we get a palindrome (263343362).

The spelling of 222122140 in words is "two hundred twenty-two million, one hundred twenty-two thousand, one hundred forty".