21100200222003 has 16 divisors (see below), whose sum is σ = 32152755085056. Its totient is φ = 12057231382560.

The previous prime is 21100200221999. The next prime is 21100200222037. The reversal of 21100200222003 is 30022200200112.

It is a happy number.

It is not a de Polignac number, because 21100200222003 - 2² = 21100200221999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21100200232003) 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, 13547625 + ... + 15024597.

It is an arithmetic number, because the mean of its divisors is an integer number (2009547192816).

Almost surely, 2^{21100200222003} is an apocalyptic number.

21100200222003 is a deficient number, since it is larger than the sum of its proper divisors (11052554863053).

21100200222003 is a wasteful number, since it uses less digits than its factorization.

21100200222003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2157274.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 21100200222003 its reverse (30022200200112), we get a palindrome (51122400422115).

The spelling of 21100200222003 in words is "twenty-one trillion, one hundred billion, two hundred million, two hundred twenty-two thousand, three".