200001121212 has 24 divisors (see below), whose sum is σ = 494120417616. Its totient is φ = 62745449728.

The previous prime is 200001121171. The next prime is 200001121241. The reversal of 200001121212 is 212121100002.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 490198623 + ... + 490199030.

It is an arithmetic number, because the mean of its divisors is an integer number (20588350734).

Almost surely, 2^200001121212 is an apocalyptic number.

It is an amenable number.

200001121212 is an abundant number, since it is smaller than the sum of its proper divisors (294119296404).

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

200001121212 is a wasteful number, since it uses less digits than its factorization.

200001121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980397677 (or 980397675 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 200001121212 its reverse (212121100002), we get a palindrome (412122221214).

The spelling of 200001121212 in words is "two hundred billion, one million, one hundred twenty-one thousand, two hundred twelve".