11221021019 has 8 divisors (see below), whose sum is σ = 12176423952. Its totient is φ = 10278796320.

The previous prime is 11221021001. The next prime is 11221021061. The reversal of 11221021019 is 91012012211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-11221021019 is a prime.

It is a super-2 number, since 2×11221021019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221021219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3292784 + ... + 3296189.

It is an arithmetic number, because the mean of its divisors is an integer number (1522052994).

Almost surely, 2^11221021019 is an apocalyptic number.

11221021019 is a deficient number, since it is larger than the sum of its proper divisors (955402933).

11221021019 is a wasteful number, since it uses less digits than its factorization.

11221021019 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6589117.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 11221021019 in words is "eleven billion, two hundred twenty-one million, twenty-one thousand, nineteen".