122213140 has 24 divisors (see below), whose sum is σ = 293311872. Its totient is φ = 41901600.

The previous prime is 122213123. The next prime is 122213173. The reversal of 122213140 is 41312221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 436336 + ... + 436615.

It is an arithmetic number, because the mean of its divisors is an integer number (12221328).

Almost surely, 2^122213140 is an apocalyptic number.

122213140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122213140 is an abundant number, since it is smaller than the sum of its proper divisors (171098732).

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

122213140 is a wasteful number, since it uses less digits than its factorization.

122213140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 872967 (or 872965 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 122213140 is about 11055.0052012652. The cubic root of 122213140 is about 496.2562249260.

Adding to 122213140 its reverse (41312221), we get a palindrome (163525361).

The spelling of 122213140 in words is "one hundred twenty-two million, two hundred thirteen thousand, one hundred forty".