222120140 has 24 divisors (see below), whose sum is σ = 508857552. Its totient is φ = 80770880.

The previous prime is 222120133. The next prime is 222120149. The reversal of 222120140 is 41021222.

222120140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (222120149) 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, 504599 + ... + 505038.

It is an arithmetic number, because the mean of its divisors is an integer number (21202398).

Almost surely, 2^222120140 is an apocalyptic number.

222120140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222120140 is an abundant number, since it is smaller than the sum of its proper divisors (286737412).

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

222120140 is a wasteful number, since it uses less digits than its factorization.

222120140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1009657 (or 1009655 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 222120140 is about 14903.6955148715. The cubic root of 222120140 is about 605.6141022178.

Adding to 222120140 its reverse (41021222), we get a palindrome (263141362).

The spelling of 222120140 in words is "two hundred twenty-two million, one hundred twenty thousand, one hundred forty".