122020220 has 96 divisors (see below), whose sum is σ = 312947712. Its totient is φ = 39011328.

The previous prime is 122020211. The next prime is 122020229. The reversal of 122020220 is 22020221.

It is an interprime number because it is at equal distance from previous prime (122020211) and next prime (122020229).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122020229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397307 + ... + 397613.

It is an arithmetic number, because the mean of its divisors is an integer number (3259872).

Almost surely, 2^122020220 is an apocalyptic number.

122020220 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 122020220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156473856).

122020220 is an abundant number, since it is smaller than the sum of its proper divisors (190927492).

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

122020220 is a wasteful number, since it uses less digits than its factorization.

122020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507 (or 505 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 11.

The square root of 122020220 is about 11046.2762956573. The cubic root of 122020220 is about 495.9949650460.

Adding to 122020220 its reverse (22020221), we get a palindrome (144040441).

Subtracting from 122020220 its reverse (22020221), we obtain a palindrome (99999999).

The spelling of 122020220 in words is "one hundred twenty-two million, twenty thousand, two hundred twenty".