21222122200019 has 16 divisors (see below), whose sum is σ = 24465220147200. Its totient is φ = 18244064141856.

The previous prime is 21222122200009. The next prime is 21222122200031. The reversal of 21222122200019 is 91000222122212.

It is a cyclic number.

It is not a de Polignac number, because 21222122200019 - 2²⁴ = 21222105422803 is a prime.

It is a super-2 number, since 2×21222122200019² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21222122200009) 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, 728116979 + ... + 728146124.

It is an arithmetic number, because the mean of its divisors is an integer number (1529076259200).

Almost surely, 2^{21222122200019} is an apocalyptic number.

21222122200019 is a deficient number, since it is larger than the sum of its proper divisors (3243097947181).

21222122200019 is a wasteful number, since it uses less digits than its factorization.

21222122200019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456263194.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 21222122200019 in words is "twenty-one trillion, two hundred twenty-two billion, one hundred twenty-two million, two hundred thousand, nineteen".