21002122022199 has 8 divisors (see below), whose sum is σ = 28035277604352. Its totient is φ = 13985190560760.

The previous prime is 21002122022183. The next prime is 21002122022207. The reversal of 21002122022199 is 99122022120012.

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

It is not a de Polignac number, because 21002122022199 - 2⁴ = 21002122022183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002122022179) 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, 4056027157 + ... + 4056032334.

It is an arithmetic number, because the mean of its divisors is an integer number (3504409700544).

Almost surely, 2^{21002122022199} is an apocalyptic number.

21002122022199 is a deficient number, since it is larger than the sum of its proper divisors (7033155582153).

21002122022199 is an equidigital number, since it uses as much as digits as its factorization.

21002122022199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8112060357.

The product of its (nonzero) digits is 5184, while the sum is 33.

The spelling of 21002122022199 in words is "twenty-one trillion, two billion, one hundred twenty-two million, twenty-two thousand, one hundred ninety-nine".