20001212202 has 16 divisors (see below), whose sum is σ = 40177110240. Its totient is φ = 6637956432.

The previous prime is 20001212191. The next prime is 20001212221. The reversal of 20001212202 is 20221210002.

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, 7277088 + ... + 7279835.

It is an arithmetic number, because the mean of its divisors is an integer number (2511069390).

Almost surely, 2^20001212202 is an apocalyptic number.

20001212202 is an abundant number, since it is smaller than the sum of its proper divisors (20175898038).

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

20001212202 is a wasteful number, since it uses less digits than its factorization.

20001212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14557157.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20001212202 its reverse (20221210002), we get a palindrome (40222422204).

The spelling of 20001212202 in words is "twenty billion, one million, two hundred twelve thousand, two hundred two".