12211212020102 has 4 divisors (see below), whose sum is σ = 18316818030156. Its totient is φ = 6105606010050.

The previous prime is 12211212020087. The next prime is 12211212020179. The reversal of 12211212020102 is 20102021211221.

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

It is a super-2 number, since 2×12211212020102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3052803005024 + ... + 3052803005027.

It is an arithmetic number, because the mean of its divisors is an integer number (4579204507539).

Almost surely, 2^{12211212020102} is an apocalyptic number.

12211212020102 is a deficient number, since it is larger than the sum of its proper divisors (6105606010054).

12211212020102 is an equidigital number, since it uses as much as digits as its factorization.

12211212020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6105606010053.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12211212020102 its reverse (20102021211221), we get a palindrome (32313233231323).

The spelling of 12211212020102 in words is "twelve trillion, two hundred eleven billion, two hundred twelve million, twenty thousand, one hundred two".