20101201111002 has 16 divisors (see below), whose sum is σ = 43857166060512. Its totient is φ = 6091273063920.

The previous prime is 20101201110979. The next prime is 20101201111003. The reversal of 20101201111002 is 20011110210102.

It is a super-2 number, since 2×20101201111002² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20101201111003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152281826533 + ... + 152281826664.

It is an arithmetic number, because the mean of its divisors is an integer number (2741072878782).

Almost surely, 2^{20101201111002} is an apocalyptic number.

20101201111002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20101201111002 is an abundant number, since it is smaller than the sum of its proper divisors (23755964949510).

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

20101201111002 is a wasteful number, since it uses less digits than its factorization.

20101201111002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304563653213.

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

Adding to 20101201111002 its reverse (20011110210102), we get a palindrome (40112311321104).

The spelling of 20101201111002 in words is "twenty trillion, one hundred one billion, two hundred one million, one hundred eleven thousand, two".