20001120212202 has 32 divisors (see below), whose sum is σ = 41091966522432. Its totient is φ = 6485494356864.

The previous prime is 20001120212149. The next prime is 20001120212221. The reversal of 20001120212202 is 20221202110002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8347683 + ... + 10473110.

It is an arithmetic number, because the mean of its divisors is an integer number (1284123953826).

Almost surely, 2^{20001120212202} is an apocalyptic number.

20001120212202 is an abundant number, since it is smaller than the sum of its proper divisors (21090846310230).

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

20001120212202 is a wasteful number, since it uses less digits than its factorization.

20001120212202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18825622.

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

Adding to 20001120212202 its reverse (20221202110002), we get a palindrome (40222322322204).

The spelling of 20001120212202 in words is "twenty trillion, one billion, one hundred twenty million, two hundred twelve thousand, two hundred two".