12220011222001 has 12 divisors (see below), whose sum is σ = 13432048845712. Its totient is φ = 11108988891000.

The previous prime is 12220011221947. The next prime is 12220011222007. The reversal of 12220011222001 is 10022211002221.

It is a happy number.

It is not a de Polignac number, because 12220011222001 - 2²¹ = 12220009124849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220011222007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12987466 + ... + 13896556.

Almost surely, 2^{12220011222001} is an apocalyptic number.

12220011222001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12220011222001 is a deficient number, since it is larger than the sum of its proper divisors (1212037623711).

12220011222001 is a wasteful number, since it uses less digits than its factorization.

12220011222001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020204 (or 1020193 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12220011222001 its reverse (10022211002221), we get a palindrome (22242222224222).

The spelling of 12220011222001 in words is "twelve trillion, two hundred twenty billion, eleven million, two hundred twenty-two thousand, one".