12102122211 has 8 divisors (see below), whose sum is σ = 16692582480. Its totient is φ = 7789871712.

The previous prime is 12102122203. The next prime is 12102122243. The reversal of 12102122211 is 11222120121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12102122211 - 2³ = 12102122203 is a prime.

It is a super-2 number, since 2×12102122211² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12102122611) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69552340 + ... + 69552513.

It is an arithmetic number, because the mean of its divisors is an integer number (2086572810).

Almost surely, 2^12102122211 is an apocalyptic number.

12102122211 is a deficient number, since it is larger than the sum of its proper divisors (4590460269).

12102122211 is a wasteful number, since it uses less digits than its factorization.

12102122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139104885.

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

Adding to 12102122211 its reverse (11222120121), we get a palindrome (23324242332).

The spelling of 12102122211 in words is "twelve billion, one hundred two million, one hundred twenty-two thousand, two hundred eleven".