12121201022 has 16 divisors (see below), whose sum is σ = 20815734240. Its totient is φ = 5185667328.

The previous prime is 12121201013. The next prime is 12121201033. The reversal of 12121201022 is 22010212121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 12121200988 and 12121201006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 752843 + ... + 768774.

It is an arithmetic number, because the mean of its divisors is an integer number (1300983390).

Almost surely, 2^12121201022 is an apocalyptic number.

12121201022 is a deficient number, since it is larger than the sum of its proper divisors (8694533218).

12121201022 is a wasteful number, since it uses less digits than its factorization.

12121201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1522195.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 12121201022 its reverse (22010212121), we get a palindrome (34131413143).

The spelling of 12121201022 in words is "twelve billion, one hundred twenty-one million, two hundred one thousand, twenty-two".