22101213021 has 8 divisors (see below), whose sum is σ = 29472955200. Its totient is φ = 14731806432.

The previous prime is 22101212977. The next prime is 22101213023. The reversal of 22101213021 is 12031210122.

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

It is not a de Polignac number, because 22101213021 - 2¹¹ = 22101210973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22101213023) 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, 561696 + ... + 599753.

It is an arithmetic number, because the mean of its divisors is an integer number (3684119400).

Almost surely, 2^22101213021 is an apocalyptic number.

It is an amenable number.

22101213021 is a deficient number, since it is larger than the sum of its proper divisors (7371742179).

22101213021 is a wasteful number, since it uses less digits than its factorization.

22101213021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1167795.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 22101213021 its reverse (12031210122), we get a palindrome (34132423143).

The spelling of 22101213021 in words is "twenty-two billion, one hundred one million, two hundred thirteen thousand, twenty-one".