20010101001102 has 24 divisors (see below), whose sum is σ = 43842356129520. Its totient is φ = 6595089468000.

The previous prime is 20010101001083. The next prime is 20010101001109. The reversal of 20010101001102 is 20110010101002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010101001109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6245348274 + ... + 6245351477.

It is an arithmetic number, because the mean of its divisors is an integer number (1826764838730).

Almost surely, 2^{20010101001102} is an apocalyptic number.

20010101001102 is an abundant number, since it is smaller than the sum of its proper divisors (23832255128418).

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

20010101001102 is a wasteful number, since it uses less digits than its factorization.

20010101001102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12490699848 (or 12490699845 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 20010101001102 its reverse (20110010101002), we get a palindrome (40120111102104).

The spelling of 20010101001102 in words is "twenty trillion, ten billion, one hundred one million, one thousand, one hundred two".