12221211010001 has 8 divisors (see below), whose sum is σ = 13994865892224. Its totient is φ = 10454498026560.

The previous prime is 12221211009949. The next prime is 12221211010003. The reversal of 12221211010001 is 10001011212221.

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

It is not a de Polignac number, because 12221211010001 - 2⁶ = 12221211009937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12221211010003) 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, 1735470920 + ... + 1735477961.

It is an arithmetic number, because the mean of its divisors is an integer number (1749358236528).

Almost surely, 2^{12221211010001} is an apocalyptic number.

It is an amenable number.

12221211010001 is a deficient number, since it is larger than the sum of its proper divisors (1773654882223).

12221211010001 is an equidigital number, since it uses as much as digits as its factorization.

12221211010001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3470949391.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12221211010001 its reverse (10001011212221), we get a palindrome (22222222222222).

The spelling of 12221211010001 in words is "twelve trillion, two hundred twenty-one billion, two hundred eleven million, ten thousand, one".