20211010210199 has 4 divisors (see below), whose sum is σ = 20466845782560. Its totient is φ = 19955174637840.

The previous prime is 20211010210189. The next prime is 20211010210219. The reversal of 20211010210199 is 99101201011202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20211010210199 - 2¹² = 20211010206103 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 (20211010210169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127917786062 + ... + 127917786219.

It is an arithmetic number, because the mean of its divisors is an integer number (5116711445640).

Almost surely, 2^{20211010210199} is an apocalyptic number.

20211010210199 is a deficient number, since it is larger than the sum of its proper divisors (255835572361).

20211010210199 is an equidigital number, since it uses as much as digits as its factorization.

20211010210199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255835572360.

The product of its (nonzero) digits is 648, while the sum is 29.

The spelling of 20211010210199 in words is "twenty trillion, two hundred eleven billion, ten million, two hundred ten thousand, one hundred ninety-nine".