22021461213 has 4 divisors (see below), whose sum is σ = 29361948288. Its totient is φ = 14680974140.

The previous prime is 22021461211. The next prime is 22021461233. The reversal of 22021461213 is 31216412022.

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 22021461213 - 2¹ = 22021461211 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021461211) 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, 3670243533 + ... + 3670243538.

It is an arithmetic number, because the mean of its divisors is an integer number (7340487072).

Almost surely, 2^22021461213 is an apocalyptic number.

It is an amenable number.

22021461213 is a deficient number, since it is larger than the sum of its proper divisors (7340487075).

22021461213 is an equidigital number, since it uses as much as digits as its factorization.

22021461213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7340487074.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 22021461213 its reverse (31216412022), we get a palindrome (53237873235).

The spelling of 22021461213 in words is "twenty-two billion, twenty-one million, four hundred sixty-one thousand, two hundred thirteen".