22212011021 has 8 divisors (see below), whose sum is σ = 22265177088. Its totient is φ = 22158900000.

The previous prime is 22212010993. The next prime is 22212011057. The reversal of 22212011021 is 12011021222.

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 22212011021 - 2⁶ = 22212010957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22212010987 and 22212011005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22212031021) 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, 859316 + ... + 884786.

It is an arithmetic number, because the mean of its divisors is an integer number (2783147136).

Almost surely, 2^22212011021 is an apocalyptic number.

It is an amenable number.

22212011021 is a deficient number, since it is larger than the sum of its proper divisors (53166067).

22212011021 is a wasteful number, since it uses less digits than its factorization.

22212011021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27523.

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

Adding to 22212011021 its reverse (12011021222), we get a palindrome (34223032243).

It can be divided in two parts, 2221201 and 1021, that added together give a palindrome (2222222).

The spelling of 22212011021 in words is "twenty-two billion, two hundred twelve million, eleven thousand, twenty-one".