22111402345 has 8 divisors (see below), whose sum is σ = 26636928264. Its totient is φ = 17620291584.

The previous prime is 22111402331. The next prime is 22111402367. The reversal of 22111402345 is 54320411122.

It can be written as a sum of positive squares in 4 ways, for example, as 14213169961 + 7898232384 = 119219^2 + 88872^2 .

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 22111402345 - 2²⁷ = 21977184617 is a prime.

It is a super-2 number, since 2×22111402345² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8602374 + ... + 8604943.

It is an arithmetic number, because the mean of its divisors is an integer number (3329616033).

Almost surely, 2^22111402345 is an apocalyptic number.

It is an amenable number.

22111402345 is a deficient number, since it is larger than the sum of its proper divisors (4525525919).

22111402345 is a wasteful number, since it uses less digits than its factorization.

22111402345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17207579.

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 22111402345 its reverse (54320411122), we get a palindrome (76431813467).

The spelling of 22111402345 in words is "twenty-two billion, one hundred eleven million, four hundred two thousand, three hundred forty-five".