22122121001 has 8 divisors (see below), whose sum is σ = 22351627200. Its totient is φ = 21892820400.

The previous prime is 22122120997. The next prime is 22122121009. The reversal of 22122121001 is 10012122122.

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 22122121001 - 2² = 22122120997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22122121009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 169820 + ... + 270338.

It is an arithmetic number, because the mean of its divisors is an integer number (2793953400).

Almost surely, 2^22122121001 is an apocalyptic number.

It is an amenable number.

22122121001 is a deficient number, since it is larger than the sum of its proper divisors (229506199).

22122121001 is a wasteful number, since it uses less digits than its factorization.

22122121001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102799.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 22122121001 its reverse (10012122122), we get a palindrome (32134243123).

The spelling of 22122121001 in words is "twenty-two billion, one hundred twenty-two million, one hundred twenty-one thousand, one".