22021111213333 has 6 divisors (see below), whose sum is σ = 23020178641334. Its totient is φ = 21063671594856.

The previous prime is 22021111213259. The next prime is 22021111213337. The reversal of 22021111213333 is 33331211112022.

It can be written as a sum of positive squares in only one way, i.e., 11576883760324 + 10444227453009 = 3402482^2 + 3231753^2 .

It is not a de Polignac number, because 22021111213333 - 2¹³ = 22021111205141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22021111213298 and 22021111213307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22021111213337) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 20813904210 + ... + 20813905267.

Almost surely, 2^{22021111213333} is an apocalyptic number.

22021111213333 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

22021111213333 is a deficient number, since it is larger than the sum of its proper divisors (999067428001).

22021111213333 is an equidigital number, since it uses as much as digits as its factorization.

22021111213333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41627809523 (or 41627809500 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 22021111213333 its reverse (33331211112022), we get a palindrome (55352322325355).

The spelling of 22021111213333 in words is "twenty-two trillion, twenty-one billion, one hundred eleven million, two hundred thirteen thousand, three hundred thirty-three".