122112020 has 24 divisors (see below), whose sum is σ = 271520424. Its totient is φ = 45971456.

The previous prime is 122112019. The next prime is 122112047. The reversal of 122112020 is 20211221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4866436 + 117245584 = 2206^2 + 10828^2 .

It is a super-2 number, since 2×122112020² = 29822690856960800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 122111992 and 122112010.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179237 + ... + 179916.

It is an arithmetic number, because the mean of its divisors is an integer number (11313351).

Almost surely, 2^122112020 is an apocalyptic number.

122112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122112020 is an abundant number, since it is smaller than the sum of its proper divisors (149408404).

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

122112020 is a wasteful number, since it uses less digits than its factorization.

122112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359179 (or 359177 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 122112020 is about 11050.4307608346. The cubic root of 122112020 is about 496.1193185454.

Adding to 122112020 its reverse (20211221), we get a palindrome (142323241).

The spelling of 122112020 in words is "one hundred twenty-two million, one hundred twelve thousand, twenty".