122000220 has 36 divisors (see below), whose sum is σ = 370067880. Its totient is φ = 32533344.

The previous prime is 122000191. The next prime is 122000237. The reversal of 122000220 is 22000221.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 338710 + ... + 339069.

Almost surely, 2^122000220 is an apocalyptic number.

122000220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122000220 is an abundant number, since it is smaller than the sum of its proper divisors (248067660).

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

122000220 is a wasteful number, since it uses less digits than its factorization.

122000220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677794 (or 677789 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 9.

The square root of 122000220 is about 11045.3709761148. The cubic root of 122000220 is about 495.9678645066.

Adding to 122000220 its reverse (22000221), we get a palindrome (144000441).

Subtracting from 122000220 its reverse (22000221), we obtain a palindrome (99999999).

The spelling of 122000220 in words is "one hundred twenty-two million, two hundred twenty", and thus it is an aban number.