219120101001 has 12 divisors (see below), whose sum is σ = 318006847600. Its totient is φ = 145387743480.

The previous prime is 219120100993. The next prime is 219120101027. The reversal of 219120101001 is 100101021912.

It is a happy number.

It is not a de Polignac number, because 219120101001 - 2³ = 219120100993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219120102001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57691651 + ... + 57695448.

Almost surely, 2^219120101001 is an apocalyptic number.

It is an amenable number.

219120101001 is a deficient number, since it is larger than the sum of its proper divisors (98886746599).

219120101001 is a wasteful number, since it uses less digits than its factorization.

219120101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115387316 (or 115387313 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 219120101001 its reverse (100101021912), we get a palindrome (319221122913).

The spelling of 219120101001 in words is "two hundred nineteen billion, one hundred twenty million, one hundred one thousand, one".