22211140421 has 4 divisors (see below), whose sum is σ = 22226449344. Its totient is φ = 22195831500.

The previous prime is 22211140409. The next prime is 22211140463. The reversal of 22211140421 is 12404111222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22211140421 - 2¹⁴ = 22211124037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22211140393 and 22211140402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22211040421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7652285 + ... + 7655186.

It is an arithmetic number, because the mean of its divisors is an integer number (5556612336).

Almost surely, 2^22211140421 is an apocalyptic number.

It is an amenable number.

22211140421 is a deficient number, since it is larger than the sum of its proper divisors (15308923).

22211140421 is a wasteful number, since it uses less digits than its factorization.

22211140421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15308922.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22211140421 its reverse (12404111222), we get a palindrome (34615251643).

The spelling of 22211140421 in words is "twenty-two billion, two hundred eleven million, one hundred forty thousand, four hundred twenty-one".