20001100212122 has 8 divisors (see below), whose sum is σ = 30002548913472. Its totient is φ = 10000250574300.

The previous prime is 20001100212101. The next prime is 20001100212139. The reversal of 20001100212122 is 22121200110002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20001100212097 and 20001100212106.

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 3 ways as a sum of consecutive naturals, for example, 149682404 + ... + 149815967.

It is an arithmetic number, because the mean of its divisors is an integer number (3750318614184).

Almost surely, 2^{20001100212122} is an apocalyptic number.

20001100212122 is a deficient number, since it is larger than the sum of its proper divisors (10001448701350).

20001100212122 is a wasteful number, since it uses less digits than its factorization.

20001100212122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 299531764.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 20001100212122 its reverse (22121200110002), we get a palindrome (42122300322124).

The spelling of 20001100212122 in words is "twenty trillion, one billion, one hundred million, two hundred twelve thousand, one hundred twenty-two".