22001434021 has 8 divisors (see below), whose sum is σ = 25146586880. Its totient is φ = 18856803888.

The previous prime is 22001433977. The next prime is 22001434027. The reversal of 22001434021 is 12043410022.

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 22001434021 - 2⁷ = 22001433893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22001434021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22001434027) 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, 35901 + ... + 212818.

It is an arithmetic number, because the mean of its divisors is an integer number (3143323360).

Almost surely, 2^22001434021 is an apocalyptic number.

It is an amenable number.

22001434021 is a deficient number, since it is larger than the sum of its proper divisors (3145152859).

22001434021 is a wasteful number, since it uses less digits than its factorization.

22001434021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261363.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 22001434021 its reverse (12043410022), we get a palindrome (34044844043).

The spelling of 22001434021 in words is "twenty-two billion, one million, four hundred thirty-four thousand, twenty-one".