20001100222212 has 24 divisors (see below), whose sum is σ = 47930564497536. Its totient is φ = 6486843315168.

The previous prime is 20001100222139. The next prime is 20001100222237. The reversal of 20001100222212 is 21222200110002.

It is a junction number, because it is equal to n+sod(n) for n = 20001100222191 and 20001100222200.

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, 22523761068 + ... + 22523761955.

It is an arithmetic number, because the mean of its divisors is an integer number (1997106854064).

Almost surely, 2^{20001100222212} is an apocalyptic number.

It is an amenable number.

20001100222212 is an abundant number, since it is smaller than the sum of its proper divisors (27929464275324).

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

20001100222212 is a wasteful number, since it uses less digits than its factorization.

20001100222212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45047523067 (or 45047523065 counting only the distinct ones).

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

Adding to 20001100222212 its reverse (21222200110002), we get a palindrome (41223300332214).

The spelling of 20001100222212 in words is "twenty trillion, one billion, one hundred million, two hundred twenty-two thousand, two hundred twelve".