20111021001102 has 16 divisors (see below), whose sum is σ = 40222478419200. Its totient is φ = 6703600930872.

The previous prime is 20111021001101. The next prime is 20111021001151. The reversal of 20111021001102 is 20110012011102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20111021001101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17583448 + ... + 18692235.

It is an arithmetic number, because the mean of its divisors is an integer number (2513904901200).

Almost surely, 2^{20111021001102} is an apocalyptic number.

20111021001102 is an abundant number, since it is smaller than the sum of its proper divisors (20111457418098).

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

20111021001102 is a wasteful number, since it uses less digits than its factorization.

20111021001102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36368087.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20111021001102 its reverse (20110012011102), we get a palindrome (40221033012204).

The spelling of 20111021001102 in words is "twenty trillion, one hundred eleven billion, twenty-one million, one thousand, one hundred two".