12121102220001 has 16 divisors (see below), whose sum is σ = 16720979636160. Its totient is φ = 7801053740480.

The previous prime is 12121102219957. The next prime is 12121102220039. The reversal of 12121102220001 is 10002220112121.

It is not a de Polignac number, because 12121102220001 - 2¹³ = 12121102211809 is a prime.

It is a super-2 number, since 2×12121102220001² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12121102220081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8581635 + ... + 9893768.

It is an arithmetic number, because the mean of its divisors is an integer number (1045061227260).

Almost surely, 2^{12121102220001} is an apocalyptic number.

It is an amenable number.

12121102220001 is a deficient number, since it is larger than the sum of its proper divisors (4599877416159).

12121102220001 is a wasteful number, since it uses less digits than its factorization.

12121102220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18482976.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12121102220001 its reverse (10002220112121), we get a palindrome (22123322332122).

The spelling of 12121102220001 in words is "twelve trillion, one hundred twenty-one billion, one hundred two million, two hundred twenty thousand, one".