20012201120020 has 48 divisors (see below), whose sum is σ = 42721460401536. Its totient is φ = 7872382224000.

The previous prime is 20012201119991. The next prime is 20012201120027. The reversal of 20012201120020 is 2002110221002.

It is a happy number.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6256905 + ... + 8897935.

It is an arithmetic number, because the mean of its divisors is an integer number (890030425032).

Almost surely, 2^{20012201120020} is an apocalyptic number.

20012201120020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20012201120020 is an abundant number, since it is smaller than the sum of its proper divisors (22709259281516).

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

20012201120020 is a wasteful number, since it uses less digits than its factorization.

20012201120020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2647312 (or 2647310 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20012201120020 its reverse (2002110221002), we get a palindrome (22014311341022).

The spelling of 20012201120020 in words is "twenty trillion, twelve billion, two hundred one million, one hundred twenty thousand, twenty".