20012201120021 has 24 divisors (see below), whose sum is σ = 23693092352160. Its totient is φ = 16834565452320.

The previous prime is 20012201119991. The next prime is 20012201120027. The reversal of 20012201120021 is 12002110221002.

It is not a de Polignac number, because 20012201120021 - 2⁶ = 20012201119957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20012201119978 and 20012201120005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012201120027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 101119070 + ... + 101316783.

It is an arithmetic number, because the mean of its divisors is an integer number (987212181340).

Almost surely, 2^{20012201120021} is an apocalyptic number.

It is an amenable number.

20012201120021 is a deficient number, since it is larger than the sum of its proper divisors (3680891232139).

20012201120021 is a wasteful number, since it uses less digits than its factorization.

20012201120021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202435937 (or 202435926 counting only the distinct ones).

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

Adding to 20012201120021 its reverse (12002110221002), we get a palindrome (32014311341023).

The spelling of 20012201120021 in words is "twenty trillion, twelve billion, two hundred one million, one hundred twenty thousand, twenty-one".