21031003100222 has 16 divisors (see below), whose sum is σ = 32284876272000. Its totient is φ = 10269449372952.

The previous prime is 21031003100221. The next prime is 21031003100227. The reversal of 21031003100222 is 22200130013012.

It is a self number, because there is not a number n which added to its sum of digits gives 21031003100222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21031003100221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17333972 + ... + 18507527.

It is an arithmetic number, because the mean of its divisors is an integer number (2017804767000).

Almost surely, 2^{21031003100222} is an apocalyptic number.

21031003100222 is a deficient number, since it is larger than the sum of its proper divisors (11253873171778).

21031003100222 is a wasteful number, since it uses less digits than its factorization.

21031003100222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35848367.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21031003100222 its reverse (22200130013012), we get a palindrome (43231133113234).

The spelling of 21031003100222 in words is "twenty-one trillion, thirty-one billion, three million, one hundred thousand, two hundred twenty-two".