122213100 has 36 divisors (see below), whose sum is σ = 353604104. Its totient is φ = 32590080.

The previous prime is 122213083. The next prime is 122213123. The reversal of 122213100 is 1312221.

It is a super-2 number, since 2×122213100² = 29872083623220000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203389 + ... + 203988.

Almost surely, 2^122213100 is an apocalyptic number.

122213100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122213100 is an abundant number, since it is smaller than the sum of its proper divisors (231391004).

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

122213100 is a wasteful number, since it uses less digits than its factorization.

122213100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407394 (or 407387 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 122213100 is about 11055.0033921297. The cubic root of 122213100 is about 496.2561707849.

Adding to 122213100 its reverse (1312221), we get a palindrome (123525321).

The spelling of 122213100 in words is "one hundred twenty-two million, two hundred thirteen thousand, one hundred".