11122112100021 has 8 divisors (see below), whose sum is σ = 15970212246240. Its totient is φ = 6844376676912.

The previous prime is 11122112099993. The next prime is 11122112100023. The reversal of 11122112100021 is 12000121122111.

It is a happy number.

11122112100021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 11122112100021 - 2¹¹ = 11122112097973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122112100023) 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, 142591180731 + ... + 142591180808.

It is an arithmetic number, because the mean of its divisors is an integer number (1996276530780).

Almost surely, 2^{11122112100021} is an apocalyptic number.

It is an amenable number.

11122112100021 is a deficient number, since it is larger than the sum of its proper divisors (4848100146219).

11122112100021 is a wasteful number, since it uses less digits than its factorization.

11122112100021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285182361555.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 11122112100021 its reverse (12000121122111), we get a palindrome (23122233222132).

The spelling of 11122112100021 in words is "eleven trillion, one hundred twenty-two billion, one hundred twelve million, one hundred thousand, twenty-one".