201010112212 has 72 divisors (see below), whose sum is σ = 443284515240. Its totient is φ = 79520313600.

The previous prime is 201010112179. The next prime is 201010112227. The reversal of 201010112212 is 212211010102.

It can be written as a sum of positive squares in 4 ways, for example, as 65789172036 + 135220940176 = 256494^2 + 367724^2 .

It is a super-2 number, since 2×201010112212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 201010112192 and 201010112201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197212 + ... + 664012.

Almost surely, 2^201010112212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 201010112212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (221642257620).

201010112212 is an abundant number, since it is smaller than the sum of its proper divisors (242274403028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

201010112212 is a wasteful number, since it uses less digits than its factorization.

201010112212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466858 (or 466823 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 201010112212 its reverse (212211010102), we get a palindrome (413221122314).

The spelling of 201010112212 in words is "two hundred one billion, ten million, one hundred twelve thousand, two hundred twelve".