21211122001199 has 8 divisors (see below), whose sum is σ = 22842846783120. Its totient is φ = 19579411506816.

The previous prime is 21211122001193. The next prime is 21211122001253. The reversal of 21211122001199 is 99110022111212.

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 21211122001199 - 2⁴ = 21211122001183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21211122001193) 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, 383057 + ... + 6524490.

It is an arithmetic number, because the mean of its divisors is an integer number (2855355847890).

Almost surely, 2^{21211122001199} is an apocalyptic number.

21211122001199 is a deficient number, since it is larger than the sum of its proper divisors (1631724781921).

21211122001199 is a wasteful number, since it uses less digits than its factorization.

21211122001199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7143769.

The product of its (nonzero) digits is 1296, while the sum is 32.

The spelling of 21211122001199 in words is "twenty-one trillion, two hundred eleven billion, one hundred twenty-two million, one thousand, one hundred ninety-nine".