201100211212 has 36 divisors (see below), whose sum is σ = 368175764880. Its totient is φ = 96104110432.

The previous prime is 201100211209. The next prime is 201100211219. The reversal of 201100211212 is 212112001102.

It is a super-2 number, since 2×201100211212² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201100211192 and 201100211201.

It is not an unprimeable number, because it can be changed into a prime (201100211219) 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, 2754978 + ... + 2827030.

It is an arithmetic number, because the mean of its divisors is an integer number (10227104580).

Almost surely, 2^201100211212 is an apocalyptic number.

It is an amenable number.

201100211212 is a deficient number, since it is larger than the sum of its proper divisors (167075553668).

201100211212 is a wasteful number, since it uses less digits than its factorization.

201100211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73422 (or 73397 counting only the distinct ones).

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

Adding to 201100211212 its reverse (212112001102), we get a palindrome (413212212314).

The spelling of 201100211212 in words is "two hundred one billion, one hundred million, two hundred eleven thousand, two hundred twelve".