200221123212 has 96 divisors (see below), whose sum is σ = 569247436800. Its totient is φ = 60355339200.

The previous prime is 200221123199. The next prime is 200221123217. The reversal of 200221123212 is 212321122002.

200221123212 is a `hidden beast` number, since 200 + 221 + 1 + 232 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (200221123217) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214287 + ... + 668102.

It is an arithmetic number, because the mean of its divisors is an integer number (5929660800).

Almost surely, 2^200221123212 is an apocalyptic number.

200221123212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

200221123212 is an abundant number, since it is smaller than the sum of its proper divisors (369026313588).

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

200221123212 is a wasteful number, since it uses less digits than its factorization.

200221123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 882604 (or 882596 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 200221123212 its reverse (212321122002), we get a palindrome (412542245214).

The spelling of 200221123212 in words is "two hundred billion, two hundred twenty-one million, one hundred twenty-three thousand, two hundred twelve".