122001100 has 54 divisors (see below), whose sum is σ = 286713420. Its totient is φ = 45040320.

The previous prime is 122001091. The next prime is 122001101. The reversal of 122001100 is 1100221.

It is not an unprimeable number, because it can be changed into a prime (122001101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13291 + ... + 20509.

Almost surely, 2^122001100 is an apocalyptic number.

122001100 is a gapful number since it is divisible by the number (10) 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 122001100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143356710).

122001100 is an abundant number, since it is smaller than the sum of its proper divisors (164712320).

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

122001100 is a wasteful number, since it uses less digits than its factorization.

122001100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7259 (or 7239 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 122001100 is about 11045.4108117353. The cubic root of 122001100 is about 495.9690569927.

Adding to 122001100 its reverse (1100221), we get a palindrome (123101321).

The spelling of 122001100 in words is "one hundred twenty-two million, one thousand, one hundred".