22121012010001 has 8 divisors (see below), whose sum is σ = 22128544987904. Its totient is φ = 22113479409840.

The previous prime is 22121012009977. The next prime is 22121012010043. The reversal of 22121012010001 is 10001021012122.

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

It is a cyclic number.

It is not a de Polignac number, because 22121012010001 - 2¹¹ = 22121012007953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22121012014001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165245971 + ... + 165379783.

It is an arithmetic number, because the mean of its divisors is an integer number (2766068123488).

Almost surely, 2^{22121012010001} is an apocalyptic number.

It is an amenable number.

22121012010001 is a deficient number, since it is larger than the sum of its proper divisors (7532977903).

22121012010001 is a wasteful number, since it uses less digits than its factorization.

22121012010001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188871.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22121012010001 its reverse (10001021012122), we get a palindrome (32122033022123).

The spelling of 22121012010001 in words is "twenty-two trillion, one hundred twenty-one billion, twelve million, ten thousand, one".