21012202202003 has 8 divisors (see below), whose sum is σ = 21088914151872. Its totient is φ = 20935496408256.

The previous prime is 21012202201909. The next prime is 21012202202021. The reversal of 21012202202003 is 30020220221012.

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 21012202202003 - 2¹⁴ = 21012202185619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21012202202023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5356151 + ... + 8409087.

It is an arithmetic number, because the mean of its divisors is an integer number (2636114268984).

Almost surely, 2^{21012202202003} is an apocalyptic number.

21012202202003 is a deficient number, since it is larger than the sum of its proper divisors (76711949869).

21012202202003 is a wasteful number, since it uses less digits than its factorization.

21012202202003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3078061.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 21012202202003 its reverse (30020220221012), we get a palindrome (51032422423015).

The spelling of 21012202202003 in words is "twenty-one trillion, twelve billion, two hundred two million, two hundred two thousand, three".