20101022201 has 64 divisors (see below), whose sum is σ = 23939973120. Its totient is φ = 16723998720.

The previous prime is 20101022191. The next prime is 20101022233. The reversal of 20101022201 is 10222010102.

It is a happy number.

It is not a de Polignac number, because 20101022201 - 2¹⁴ = 20101005817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20101022281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 71028206 + ... + 71028488.

It is an arithmetic number, because the mean of its divisors is an integer number (374062080).

Almost surely, 2^20101022201 is an apocalyptic number.

It is an amenable number.

20101022201 is a deficient number, since it is larger than the sum of its proper divisors (3838950919).

20101022201 is a wasteful number, since it uses less digits than its factorization.

20101022201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20101022201 its reverse (10222010102), we get a palindrome (30323032303).

The spelling of 20101022201 in words is "twenty billion, one hundred one million, twenty-two thousand, two hundred one".