219211061113 has 4 divisors (see below), whose sum is σ = 239139339408. Its totient is φ = 199282782820.

The previous prime is 219211061107. The next prime is 219211061137. The reversal of 219211061113 is 311160112912.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-219211061113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (219211062113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9964139131 + ... + 9964139152.

It is an arithmetic number, because the mean of its divisors is an integer number (59784834852).

Almost surely, 2^219211061113 is an apocalyptic number.

It is an amenable number.

219211061113 is a deficient number, since it is larger than the sum of its proper divisors (19928278295).

219211061113 is a wasteful number, since it uses less digits than its factorization.

219211061113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19928278294.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 219211061113 in words is "two hundred nineteen billion, two hundred eleven million, sixty-one thousand, one hundred thirteen".