20101200211209 has 8 divisors (see below), whose sum is σ = 28863261841792. Its totient is φ = 12369969360720.

The previous prime is 20101200211193. The next prime is 20101200211217. The reversal of 20101200211209 is 90211200210102.

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

It is not a de Polignac number, because 20101200211209 - 2⁴ = 20101200211193 is a prime.

It is a super-2 number, since 2×20101200211209² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101200211009) 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, 257707694977 + ... + 257707695054.

It is an arithmetic number, because the mean of its divisors is an integer number (3607907730224).

Almost surely, 2^{20101200211209} is an apocalyptic number.

It is an amenable number.

20101200211209 is a deficient number, since it is larger than the sum of its proper divisors (8762061630583).

20101200211209 is a wasteful number, since it uses less digits than its factorization.

20101200211209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515415390047.

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 20101200211209 in words is "twenty trillion, one hundred one billion, two hundred million, two hundred eleven thousand, two hundred nine".