12211021221029 has 8 divisors (see below), whose sum is σ = 12290850105600. Its totient is φ = 12131445360816.

The previous prime is 12211021220989. The next prime is 12211021221041. The reversal of 12211021221029 is 92012212011221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12211021221029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12211021220989 and 12211021221007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12211021221929) 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, 63159254 + ... + 63352295.

It is an arithmetic number, because the mean of its divisors is an integer number (1536356263200).

Almost surely, 2^{12211021221029} is an apocalyptic number.

It is an amenable number.

12211021221029 is a deficient number, since it is larger than the sum of its proper divisors (79828884571).

12211021221029 is a wasteful number, since it uses less digits than its factorization.

12211021221029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126512179.

The product of its (nonzero) digits is 576, while the sum is 26.

The spelling of 12211021221029 in words is "twelve trillion, two hundred eleven billion, twenty-one million, two hundred twenty-one thousand, twenty-nine".