22120421351 has 8 divisors (see below), whose sum is σ = 25281467904. Its totient is φ = 18959621400.

The previous prime is 22120421347. The next prime is 22120421359. The reversal of 22120421351 is 15312402122.

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 22120421351 - 2² = 22120421347 is a prime.

It is a super-3 number, since 3×22120421351³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22120421359) 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, 210926 + ... + 297876.

It is an arithmetic number, because the mean of its divisors is an integer number (3160183488).

Almost surely, 2^22120421351 is an apocalyptic number.

22120421351 is a deficient number, since it is larger than the sum of its proper divisors (3161046553).

22120421351 is an equidigital number, since it uses as much as digits as its factorization.

22120421351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123301.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 22120421351 its reverse (15312402122), we get a palindrome (37432823473).

The spelling of 22120421351 in words is "twenty-two billion, one hundred twenty million, four hundred twenty-one thousand, three hundred fifty-one".