20101210212201 has 32 divisors (see below), whose sum is σ = 27092308024320. Its totient is φ = 13255882377984.

The previous prime is 20101210212133. The next prime is 20101210212331. The reversal of 20101210212201 is 10221201210102.

It is not a de Polignac number, because 20101210212201 - 2³⁰ = 20100136470377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20101210212901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 615584391 + ... + 615617043.

It is an arithmetic number, because the mean of its divisors is an integer number (846634625760).

Almost surely, 2^{20101210212201} is an apocalyptic number.

It is an amenable number.

20101210212201 is a deficient number, since it is larger than the sum of its proper divisors (6991097812119).

20101210212201 is a wasteful number, since it uses less digits than its factorization.

20101210212201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35825.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20101210212201 its reverse (10221201210102), we get a palindrome (30322411422303).

The spelling of 20101210212201 in words is "twenty trillion, one hundred one billion, two hundred ten million, two hundred twelve thousand, two hundred one".