201220210212 has 24 divisors (see below), whose sum is σ = 536587227456. Its totient is φ = 57491488608.

The previous prime is 201220210211. The next prime is 201220210253. The reversal of 201220210212 is 212012022102.

It is a super-2 number, since 2×201220210212² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201220210191 and 201220210200.

It is not an unprimeable number, because it can be changed into a prime (201220210211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1197739263 + ... + 1197739430.

It is an arithmetic number, because the mean of its divisors is an integer number (22357801144).

Almost surely, 2^201220210212 is an apocalyptic number.

It is an amenable number.

201220210212 is an abundant number, since it is smaller than the sum of its proper divisors (335367017244).

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

201220210212 is a wasteful number, since it uses less digits than its factorization.

201220210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2395478707 (or 2395478705 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 201220210212 its reverse (212012022102), we get a palindrome (413232232314).

The spelling of 201220210212 in words is "two hundred one billion, two hundred twenty million, two hundred ten thousand, two hundred twelve".