21133223002 has 8 divisors (see below), whose sum is σ = 31831369812. Its totient is φ = 10522766400.

The previous prime is 21133222997. The next prime is 21133223011. The reversal of 21133223002 is 20032233112.

It can be written as a sum of positive squares in 2 ways, for example, as 20240468361 + 892754641 = 142269^2 + 29879^2 .

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

It is a super-2 number, since 2×21133223002² (a number of 21 digits) contains 22 as substring.

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, 21921949 + ... + 21922912.

Almost surely, 2^21133223002 is an apocalyptic number.

21133223002 is a deficient number, since it is larger than the sum of its proper divisors (10698146810).

21133223002 is a wasteful number, since it uses less digits than its factorization.

21133223002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43845104.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21133223002 its reverse (20032233112), we get a palindrome (41165456114).

The spelling of 21133223002 in words is "twenty-one billion, one hundred thirty-three million, two hundred twenty-three thousand, two".