11211400122021 has 24 divisors (see below), whose sum is σ = 17704770763680. Its totient is φ = 6780048688800.

The previous prime is 11211400122001. The next prime is 11211400122031. The reversal of 11211400122021 is 12022100411211.

11211400122021 is a `hidden beast` number, since 1 + 1 + 21 + 1 + 400 + 1 + 220 + 21 = 666.

It is not a de Polignac number, because 11211400122021 - 2⁷ = 11211400121893 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11211400121985 and 11211400122003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211400122001) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122781331 + ... + 122872608.

It is an arithmetic number, because the mean of its divisors is an integer number (737698781820).

Almost surely, 2^{11211400122021} is an apocalyptic number.

11211400122021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11211400122021 is a deficient number, since it is larger than the sum of its proper divisors (6493370641659).

11211400122021 is a wasteful number, since it uses less digits than its factorization.

11211400122021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245654417 (or 245654414 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11211400122021 its reverse (12022100411211), we get a palindrome (23233500533232).

The spelling of 11211400122021 in words is "eleven trillion, two hundred eleven billion, four hundred million, one hundred twenty-two thousand, twenty-one".