20212133005 has 16 divisors (see below), whose sum is σ = 24945384240. Its totient is φ = 15710395392.

The previous prime is 20212132999. The next prime is 20212133027. The reversal of 20212133005 is 50033121202.

It can be written as a sum of positive squares in 8 ways, for example, as 3336564169 + 16875568836 = 57763^2 + 129906^2 .

It is a cyclic number.

It is not a de Polignac number, because 20212133005 - 2²³ = 20203744397 is a prime.

It is a super-2 number, since 2×20212133005² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54117 + ... + 208213.

It is an arithmetic number, because the mean of its divisors is an integer number (1559086515).

Almost surely, 2^20212133005 is an apocalyptic number.

It is an amenable number.

20212133005 is a deficient number, since it is larger than the sum of its proper divisors (4733251235).

20212133005 is a wasteful number, since it uses less digits than its factorization.

20212133005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154848.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 20212133005 its reverse (50033121202), we get a palindrome (70245254207).

The spelling of 20212133005 in words is "twenty billion, two hundred twelve million, one hundred thirty-three thousand, five".