12220121101022 has 4 divisors (see below), whose sum is σ = 18330181651536. Its totient is φ = 6110060550510.

The previous prime is 12220121101021. The next prime is 12220121101061. The reversal of 12220121101022 is 22010112102221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12220121101021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3055030275254 + ... + 3055030275257.

It is an arithmetic number, because the mean of its divisors is an integer number (4582545412884).

Almost surely, 2^{12220121101022} is an apocalyptic number.

12220121101022 is a deficient number, since it is larger than the sum of its proper divisors (6110060550514).

12220121101022 is an equidigital number, since it uses as much as digits as its factorization.

12220121101022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6110060550513.

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

Adding to 12220121101022 its reverse (22010112102221), we get a palindrome (34230233203243).

The spelling of 12220121101022 in words is "twelve trillion, two hundred twenty billion, one hundred twenty-one million, one hundred one thousand, twenty-two".