12221112020001 has 16 divisors (see below), whose sum is σ = 17254589756544. Its totient is φ = 7667590878464.

The previous prime is 12221112019997. The next prime is 12221112020011. The reversal of 12221112020001 is 10002021112221.

It is a cyclic number.

It is not a de Polignac number, because 12221112020001 - 2² = 12221112019997 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12221112020011) 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, 8007765 + ... + 9410978.

It is an arithmetic number, because the mean of its divisors is an integer number (1078411859784).

Almost surely, 2^{12221112020001} is an apocalyptic number.

It is an amenable number.

12221112020001 is a deficient number, since it is larger than the sum of its proper divisors (5033477736543).

12221112020001 is a wasteful number, since it uses less digits than its factorization.

12221112020001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17432520.

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

Adding to 12221112020001 its reverse (10002021112221), we get a palindrome (22223133132222).

The spelling of 12221112020001 in words is "twelve trillion, two hundred twenty-one billion, one hundred twelve million, twenty thousand, one".