200020154212 has 24 divisors (see below), whose sum is σ = 370705761216. Its totient is φ = 94234021728.

The previous prime is 200020154179. The next prime is 200020154219. The reversal of 200020154212 is 212451020002.

It is a super-2 number, since 2×200020154212² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 200020154212.

It is not an unprimeable number, because it can be changed into a prime (200020154219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16218703 + ... + 16231030.

It is an arithmetic number, because the mean of its divisors is an integer number (15446073384).

Almost surely, 2^200020154212 is an apocalyptic number.

It is an amenable number.

200020154212 is a deficient number, since it is larger than the sum of its proper divisors (170685607004).

200020154212 is a wasteful number, since it uses less digits than its factorization.

200020154212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32449827 (or 32449825 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

Adding to 200020154212 its reverse (212451020002), we get a palindrome (412471174214).

The spelling of 200020154212 in words is "two hundred billion, twenty million, one hundred fifty-four thousand, two hundred twelve".