20012020221102 has 64 divisors (see below), whose sum is σ = 49260971020800. Its totient is φ = 5277829705344.

The previous prime is 20012020221101. The next prime is 20012020221161. The reversal of 20012020221102 is 20112202021002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20012020221101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56587524 + ... + 56940072.

It is an arithmetic number, because the mean of its divisors is an integer number (769702672200).

Almost surely, 2^{20012020221102} is an apocalyptic number.

20012020221102 is an abundant number, since it is smaller than the sum of its proper divisors (29248950799698).

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

20012020221102 is a wasteful number, since it uses less digits than its factorization.

20012020221102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456537.

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

Adding to 20012020221102 its reverse (20112202021002), we get a palindrome (40124222242104).

The spelling of 20012020221102 in words is "twenty trillion, twelve billion, twenty million, two hundred twenty-one thousand, one hundred two".