122011020 has 108 divisors (see below), whose sum is σ = 378194544. Its totient is φ = 31838400.

The previous prime is 122010983. The next prime is 122011031. The reversal of 122011020 is 20110221.

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

It is a junction number, because it is equal to n+sod(n) for n = 122010993 and 122011011.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 807945 + ... + 808095.

Almost surely, 2^122011020 is an apocalyptic number.

122011020 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 122011020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189097272).

122011020 is an abundant number, since it is smaller than the sum of its proper divisors (256183524).

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

122011020 is a wasteful number, since it uses less digits than its factorization.

122011020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 122011020 is about 11045.8598578834. The cubic root of 122011020 is about 495.9824991657.

Adding to 122011020 its reverse (20110221), we get a palindrome (142121241).

The spelling of 122011020 in words is "one hundred twenty-two million, eleven thousand, twenty".