12221020001222 has 8 divisors (see below), whose sum is σ = 18552391809336. Its totient is φ = 6036889398112.

The previous prime is 12221020001221. The next prime is 12221020001251. The reversal of 12221020001222 is 22210002012221.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12221020001222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221020001221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36810301043 + ... + 36810301374.

It is an arithmetic number, because the mean of its divisors is an integer number (2319048976167).

Almost surely, 2^{12221020001222} is an apocalyptic number.

12221020001222 is a deficient number, since it is larger than the sum of its proper divisors (6331371808114).

12221020001222 is an equidigital number, since it uses as much as digits as its factorization.

12221020001222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73620602502.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12221020001222 its reverse (22210002012221), we get a palindrome (34431022013443).

The spelling of 12221020001222 in words is "twelve trillion, two hundred twenty-one billion, twenty million, one thousand, two hundred twenty-two".