122042100 has 36 divisors (see below), whose sum is σ = 353109344. Its totient is φ = 32544480.

The previous prime is 122042083. The next prime is 122042119. The reversal of 122042100 is 1240221.

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

It is a nialpdrome in base 15.

It is a congruent number.

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, 203104 + ... + 203703.

Almost surely, 2^122042100 is an apocalyptic number.

122042100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122042100 is an abundant number, since it is smaller than the sum of its proper divisors (231067244).

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

122042100 is a wasteful number, since it uses less digits than its factorization.

122042100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406824 (or 406817 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 122042100 is about 11047.2666302575. The cubic root of 122042100 is about 496.0246096444.

Adding to 122042100 its reverse (1240221), we get a palindrome (123282321).

The spelling of 122042100 in words is "one hundred twenty-two million, forty-two thousand, one hundred".