22021212001121 has 8 divisors (see below), whose sum is σ = 22041556113984. Its totient is φ = 22000876700400.

The previous prime is 22021212000973. The next prime is 22021212001123. The reversal of 22021212001121 is 12110021212022.

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 22021212001121 - 2³⁰ = 22020138259297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22021212001121.

It is not an unprimeable number, because it can be changed into a prime (22021212001123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2802446 + ... + 7203896.

It is an arithmetic number, because the mean of its divisors is an integer number (2755194514248).

Almost surely, 2^{22021212001121} is an apocalyptic number.

It is an amenable number.

22021212001121 is a deficient number, since it is larger than the sum of its proper divisors (20344112863).

22021212001121 is a wasteful number, since it uses less digits than its factorization.

22021212001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406071.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 22021212001121 its reverse (12110021212022), we get a palindrome (34131233213143).

The spelling of 22021212001121 in words is "twenty-two trillion, twenty-one billion, two hundred twelve million, one thousand, one hundred twenty-one".