122000020 has 12 divisors (see below), whose sum is σ = 256200084. Its totient is φ = 48800000.

The previous prime is 122000003. The next prime is 122000029. The reversal of 122000020 is 20000221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 83832336 + 38167684 = 9156^2 + 6178^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121999967 and 122000012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122000029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3049981 + ... + 3050020.

It is an arithmetic number, because the mean of its divisors is an integer number (21350007).

Almost surely, 2^122000020 is an apocalyptic number.

122000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122000020 is an abundant number, since it is smaller than the sum of its proper divisors (134200064).

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

122000020 is a wasteful number, since it uses less digits than its factorization.

122000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100010 (or 6100008 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 7.

The square root of 122000020 is about 11045.3619225447. The cubic root of 122000020 is about 495.9675934863.

Adding to 122000020 its reverse (20000221), we get a palindrome (142000241).

The spelling of 122000020 in words is "one hundred twenty-two million, twenty", and thus it is an aban number.