21211222201003 has 16 divisors (see below), whose sum is σ = 22232279347200. Its totient is φ = 20209751321760.

The previous prime is 21211222200989. The next prime is 21211222201181. The reversal of 21211222201003 is 30010222211212.

It is a cyclic number.

It is not a de Polignac number, because 21211222201003 - 2¹⁷ = 21211222069931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21211222201703) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1812250 + ... + 6760672.

It is an arithmetic number, because the mean of its divisors is an integer number (1389517459200).

Almost surely, 2^{21211222201003} is an apocalyptic number.

21211222201003 is a deficient number, since it is larger than the sum of its proper divisors (1021057146197).

21211222201003 is a wasteful number, since it uses less digits than its factorization.

21211222201003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4950402.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 21211222201003 its reverse (30010222211212), we get a palindrome (51221444412215).

The spelling of 21211222201003 in words is "twenty-one trillion, two hundred eleven billion, two hundred twenty-two million, two hundred one thousand, three".