122001012 has 48 divisors (see below), whose sum is σ = 361486720. Its totient is φ = 34857216.

The previous prime is 122001001. The next prime is 122001013. The reversal of 122001012 is 210100221.

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 = 122000985 and 122001003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122001013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79933 + ... + 81444.

Almost surely, 2^122001012 is an apocalyptic number.

122001012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122001012 is an abundant number, since it is smaller than the sum of its proper divisors (239485708).

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

122001012 is a wasteful number, since it uses less digits than its factorization.

122001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161397 (or 161389 counting only the distinct ones).

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

The square root of 122001012 is about 11045.4068281798. The cubic root of 122001012 is about 495.9689377443.

Adding to 122001012 its reverse (210100221), we get a palindrome (332101233).

The spelling of 122001012 in words is "one hundred twenty-two million, one thousand, twelve".