212020201101123 has 12 divisors (see below), whose sum is σ = 306254046362368. Its totient is φ = 141345580070160.

The previous prime is 212020201101113. The next prime is 212020201101143. The reversal of 212020201101123 is 321101102020212.

It is not a de Polignac number, because 212020201101123 - 2¹² = 212020201097027 is a prime.

It is a super-2 number, since 2×212020201101123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212020201101096 and 212020201101105.

It is not an unprimeable number, because it can be changed into a prime (212020201101113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100621315 + ... + 102706812.

Almost surely, 2^{212020201101123} is an apocalyptic number.

212020201101123 is a deficient number, since it is larger than the sum of its proper divisors (94233845261245).

212020201101123 is a wasteful number, since it uses less digits than its factorization.

212020201101123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203443994 (or 203443991 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 212020201101123 its reverse (321101102020212), we get a palindrome (533121303121335).

The spelling of 212020201101123 in words is "two hundred twelve trillion, twenty billion, two hundred one million, one hundred one thousand, one hundred twenty-three".