22210001021 has 8 divisors (see below), whose sum is σ = 24142001184. Its totient is φ = 20309934960.

The previous prime is 22210000957. The next prime is 22210001053. The reversal of 22210001021 is 12010001222.

It is a happy number.

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 22210001021 - 2⁶ = 22210000957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22210000993 and 22210001011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22210001081) 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, 7982075 + ... + 7984856.

It is an arithmetic number, because the mean of its divisors is an integer number (3017750148).

Almost surely, 2^22210001021 is an apocalyptic number.

It is an amenable number.

22210001021 is a deficient number, since it is larger than the sum of its proper divisors (1932000163).

22210001021 is a wasteful number, since it uses less digits than its factorization.

22210001021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15967051.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 22210001021 its reverse (12010001222), we get a palindrome (34220002243).

The spelling of 22210001021 in words is "twenty-two billion, two hundred ten million, one thousand, twenty-one".