122021011212 has 48 divisors (see below), whose sum is σ = 295392125952. Its totient is φ = 39161787840.

The previous prime is 122021011187. The next prime is 122021011213. The reversal of 122021011212 is 212110120221.

It is a junction number, because it is equal to n+sod(n) for n = 122021011191 and 122021011200.

It is not an unprimeable number, because it can be changed into a prime (122021011213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 759238 + ... + 905805.

It is an arithmetic number, because the mean of its divisors is an integer number (6154002624).

Almost surely, 2^122021011212 is an apocalyptic number.

122021011212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122021011212 is an abundant number, since it is smaller than the sum of its proper divisors (173371114740).

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

122021011212 is a wasteful number, since it uses less digits than its factorization.

122021011212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665278 (or 1665276 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 122021011212 its reverse (212110120221), we get a palindrome (334131131433).

The spelling of 122021011212 in words is "one hundred twenty-two billion, twenty-one million, eleven thousand, two hundred twelve".