20211235522104 has 64 divisors (see below), whose sum is σ = 55121973408000. Its totient is φ = 6124569937920.

The previous prime is 20211235522103. The next prime is 20211235522129. The reversal of 20211235522104 is 40122553211202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211235522103) 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 15 ways as a sum of consecutive naturals, for example, 51686232 + ... + 52075800.

It is an arithmetic number, because the mean of its divisors is an integer number (861280834500).

Almost surely, 2^{20211235522104} is an apocalyptic number.

20211235522104 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

20211235522104 is an abundant number, since it is smaller than the sum of its proper divisors (34910737885896).

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

20211235522104 is a wasteful number, since it uses less digits than its factorization.

20211235522104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586108 (or 586104 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 30.

Adding to 20211235522104 its reverse (40122553211202), we get a palindrome (60333788733306).

The spelling of 20211235522104 in words is "twenty trillion, two hundred eleven billion, two hundred thirty-five million, five hundred twenty-two thousand, one hundred four".