21001233132002 has 8 divisors (see below), whose sum is σ = 31513868725212. Its totient is φ = 10496610223600.

The previous prime is 21001233131999. The next prime is 21001233132097. The reversal of 21001233132002 is 20023133210012.

It can be written as a sum of positive squares in 2 ways, for example, as 19595132836321 + 1406100295681 = 4426639^2 + 1185791^2 .

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

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, 2003164649 + ... + 2003175132.

Almost surely, 2^{21001233132002} is an apocalyptic number.

21001233132002 is a deficient number, since it is larger than the sum of its proper divisors (10512635593210).

21001233132002 is a wasteful number, since it uses less digits than its factorization.

21001233132002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4006342404.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21001233132002 its reverse (20023133210012), we get a palindrome (41024366342014).

The spelling of 21001233132002 in words is "twenty-one trillion, one billion, two hundred thirty-three million, one hundred thirty-two thousand, two".