11122021999 has 8 divisors (see below), whose sum is σ = 12135139920. Its totient is φ = 10109241600.

The previous prime is 11122021997. The next prime is 11122022011. The reversal of 11122021999 is 99912022111.

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

It is a cyclic number.

It is not a de Polignac number, because 11122021999 - 2¹ = 11122021997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122021997) 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, 12834 + ... + 149695.

It is an arithmetic number, because the mean of its divisors is an integer number (1516892490).

Almost surely, 2^11122021999 is an apocalyptic number.

11122021999 is a deficient number, since it is larger than the sum of its proper divisors (1013117921).

11122021999 is a wasteful number, since it uses less digits than its factorization.

11122021999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168761.

The product of its (nonzero) digits is 5832, while the sum is 37.

The spelling of 11122021999 in words is "eleven billion, one hundred twenty-two million, twenty-one thousand, nine hundred ninety-nine".