200221201212 has 24 divisors (see below), whose sum is σ = 478577506512. Its totient is φ = 65112585600.

The previous prime is 200221201163. The next prime is 200221201267. The reversal of 200221201212 is 212102122002.

It is a junction number, because it is equal to n+sod(n) for n = 200221201191 and 200221201200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203476339 + ... + 203477322.

It is an arithmetic number, because the mean of its divisors is an integer number (19940729438).

Almost surely, 2^200221201212 is an apocalyptic number.

It is an amenable number.

200221201212 is an abundant number, since it is smaller than the sum of its proper divisors (278356305300).

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

200221201212 is a wasteful number, since it uses less digits than its factorization.

200221201212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406953709 (or 406953707 counting only the distinct ones).

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

Adding to 200221201212 its reverse (212102122002), we get a palindrome (412323323214).

The spelling of 200221201212 in words is "two hundred billion, two hundred twenty-one million, two hundred one thousand, two hundred twelve".