21112211110219 has 16 divisors (see below), whose sum is σ = 22841492292000. Its totient is φ = 19452109374720.

The previous prime is 21112211110171. The next prime is 21112211110223. The reversal of 21112211110219 is 91201111221112.

It is a cyclic number.

It is not a de Polignac number, because 21112211110219 - 2⁷ = 21112211110091 is a prime.

It is a super-2 number, since 2×21112211110219² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21112211110193 and 21112211110202.

It is not an unprimeable number, because it can be changed into a prime (21112211110279) 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, 102233284 + ... + 102439585.

It is an arithmetic number, because the mean of its divisors is an integer number (1427593268250).

Almost surely, 2^{21112211110219} is an apocalyptic number.

21112211110219 is a deficient number, since it is larger than the sum of its proper divisors (1729281181781).

21112211110219 is a wasteful number, since it uses less digits than its factorization.

21112211110219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204673038.

The product of its (nonzero) digits is 144, while the sum is 25.

The spelling of 21112211110219 in words is "twenty-one trillion, one hundred twelve billion, two hundred eleven million, one hundred ten thousand, two hundred nineteen".