2121201222219 has 6 divisors (see below), whose sum is σ = 3063957320996. Its totient is φ = 1414134148140.

The previous prime is 2121201222181. The next prime is 2121201222241. The reversal of 2121201222219 is 9122221021212.

2121201222219 is a `hidden beast` number, since 2 + 1 + 21 + 201 + 222 + 219 = 666.

It is not a de Polignac number, because 2121201222219 - 2⁹ = 2121201221707 is a prime.

It is a super-2 number, since 2×2121201222219² (a number of 25 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 = 2121201222192 and 2121201222201.

It is not an unprimeable number, because it can be changed into a prime (2121201222289) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 117844512337 + ... + 117844512354.

Almost surely, 2^{2121201222219} is an apocalyptic number.

2121201222219 is a deficient number, since it is larger than the sum of its proper divisors (942756098777).

2121201222219 is a wasteful number, since it uses less digits than its factorization.

2121201222219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235689024697 (or 235689024694 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 2121201222219 in words is "two trillion, one hundred twenty-one billion, two hundred one million, two hundred twenty-two thousand, two hundred nineteen".