22311121221002 has 8 divisors (see below), whose sum is σ = 33466784513700. Its totient is φ = 11155526383104.

The previous prime is 22311121220989. The next prime is 22311121221049. The reversal of 22311121221002 is 20012212111322.

It can be written as a sum of positive squares in 2 ways, for example, as 22230857231521 + 80263989481 = 4714961^2 + 283309^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×22311121221002³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16290977 + ... + 17607332.

Almost surely, 2^{22311121221002} is an apocalyptic number.

22311121221002 is a deficient number, since it is larger than the sum of its proper divisors (11155663292698).

22311121221002 is a wasteful number, since it uses less digits than its factorization.

22311121221002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34227400.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 22311121221002 its reverse (20012212111322), we get a palindrome (42323333332324).

The spelling of 22311121221002 in words is "twenty-two trillion, three hundred eleven billion, one hundred twenty-one million, two hundred twenty-one thousand, two".