20221012201 has 4 divisors (see below), whose sum is σ = 21776474692. Its totient is φ = 18665549712.

The previous prime is 20221012169. The next prime is 20221012213. The reversal of 20221012201 is 10221012202.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 9565818025 + 10655194176 = 97805^2 + 103224^2 .

It is a cyclic number.

It is not a de Polignac number, because 20221012201 - 2⁵ = 20221012169 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 1555462477 = 20221012201 / (2 + 0 + 2 + 2 + 1 + 0 + 1 + 2 + 2 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20221012291) 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, 777731226 + ... + 777731251.

It is an arithmetic number, because the mean of its divisors is an integer number (5444118673).

Almost surely, 2^20221012201 is an apocalyptic number.

It is an amenable number.

20221012201 is a deficient number, since it is larger than the sum of its proper divisors (1555462491).

20221012201 is a wasteful number, since it uses less digits than its factorization.

20221012201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1555462490.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20221012201 its reverse (10221012202), we get a palindrome (30442024403).

Subtracting from 20221012201 its reverse (10221012202), we obtain a palindrome (9999999999).

The spelling of 20221012201 in words is "twenty billion, two hundred twenty-one million, twelve thousand, two hundred one".