20211012106 has 8 divisors (see below), whose sum is σ = 30429219780. Its totient is φ = 10067938848.

The previous prime is 20211012083. The next prime is 20211012109. The reversal of 20211012106 is 60121011202.

It can be written as a sum of positive squares in 2 ways, for example, as 14956067025 + 5254945081 = 122295^2 + 72491^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 20211012106.

It is not an unprimeable number, because it can be changed into a prime (20211012109) 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, 18782931 + ... + 18784006.

Almost surely, 2^20211012106 is an apocalyptic number.

20211012106 is a deficient number, since it is larger than the sum of its proper divisors (10218207674).

20211012106 is a wasteful number, since it uses less digits than its factorization.

20211012106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37567208.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20211012106 its reverse (60121011202), we get a palindrome (80332023308).

The spelling of 20211012106 in words is "twenty billion, two hundred eleven million, twelve thousand, one hundred six".