122211020 has 12 divisors (see below), whose sum is σ = 256643184. Its totient is φ = 48884400.

The previous prime is 122210947. The next prime is 122211049. The reversal of 122211020 is 20112221.

122211020 = 3905² + 3906² + ... + 3912².

It is a happy number.

It is a plaindrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 122210992 and 122211010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3055256 + ... + 3055295.

It is an arithmetic number, because the mean of its divisors is an integer number (21386932).

Almost surely, 2^122211020 is an apocalyptic number.

122211020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122211020 is an abundant number, since it is smaller than the sum of its proper divisors (134432164).

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

122211020 is a wasteful number, since it uses less digits than its factorization.

122211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6110560 (or 6110558 counting only the distinct ones).

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

The square root of 122211020 is about 11054.9093166792. The cubic root of 122211020 is about 496.2533554329.

Adding to 122211020 its reverse (20112221), we get a palindrome (142323241).

The spelling of 122211020 in words is "one hundred twenty-two million, two hundred eleven thousand, twenty".