11221619390 has 16 divisors (see below), whose sum is σ = 20200125600. Its totient is φ = 4488378720.

The previous prime is 11221619389. The next prime is 11221619441. The reversal of 11221619390 is 9391612211.

It is a happy number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11221619390.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288311 + ... + 324909.

It is an arithmetic number, because the mean of its divisors is an integer number (1262507850).

Almost surely, 2^11221619390 is an apocalyptic number.

11221619390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11221619390 is a deficient number, since it is larger than the sum of its proper divisors (8978506210).

11221619390 is a wasteful number, since it uses less digits than its factorization.

11221619390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67267.

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 11221619390 in words is "eleven billion, two hundred twenty-one million, six hundred nineteen thousand, three hundred ninety".