22121102001 has 8 divisors (see below), whose sum is σ = 29495717440. Its totient is φ = 14746943952.

The previous prime is 22121101987. The next prime is 22121102027. The reversal of 22121102001 is 10020112122.

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

It is not a de Polignac number, because 22121102001 - 2¹¹ = 22121099953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22121112001) 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, 21591 + ... + 211443.

It is an arithmetic number, because the mean of its divisors is an integer number (3686964680).

Almost surely, 2^22121102001 is an apocalyptic number.

It is an amenable number.

22121102001 is a deficient number, since it is larger than the sum of its proper divisors (7374615439).

22121102001 is a wasteful number, since it uses less digits than its factorization.

22121102001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228695.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 22121102001 its reverse (10020112122), we get a palindrome (32141214123).

The spelling of 22121102001 in words is "twenty-two billion, one hundred twenty-one million, one hundred two thousand, one".