12211100021002 has 4 divisors (see below), whose sum is σ = 18316650031506. Its totient is φ = 6105550010500.

The previous prime is 12211100020997. The next prime is 12211100021119. The reversal of 12211100021002 is 20012000111221.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 12209985729841 + 1114291161 = 3494279^2 + 33381^2 .

It is a super-2 number, since 2×12211100021002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3052775005249 + ... + 3052775005252.

Almost surely, 2^{12211100021002} is an apocalyptic number.

12211100021002 is a deficient number, since it is larger than the sum of its proper divisors (6105550010504).

12211100021002 is an equidigital number, since it uses as much as digits as its factorization.

12211100021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105550010503.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 12211100021002 its reverse (20012000111221), we get a palindrome (32223100132223).

The spelling of 12211100021002 in words is "twelve trillion, two hundred eleven billion, one hundred million, twenty-one thousand, two".