21100222033030 has 32 divisors (see below), whose sum is σ = 44117747622720. Its totient is φ = 7115765742720.

The previous prime is 21100222033013. The next prime is 21100222033039. The reversal of 21100222033030 is 3033022200112.

It is a junction number, because it is equal to n+sod(n) for n = 21100222032989 and 21100222033007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21100222033039) 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, 2470747725 + ... + 2470756264.

It is an arithmetic number, because the mean of its divisors is an integer number (1378679613210).

Almost surely, 2^{21100222033030} is an apocalyptic number.

21100222033030 is an abundant number, since it is smaller than the sum of its proper divisors (23017525589690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21100222033030 is a wasteful number, since it uses less digits than its factorization.

21100222033030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4941504064.

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

Adding to 21100222033030 its reverse (3033022200112), we get a palindrome (24133244233142).

The spelling of 21100222033030 in words is "twenty-one trillion, one hundred billion, two hundred twenty-two million, thirty-three thousand, thirty".