20001001202102 has 16 divisors (see below), whose sum is σ = 30641862796992. Its totient is φ = 9787075147200.

The previous prime is 20001001202089. The next prime is 20001001202111. The reversal of 20001001202102 is 20120210010002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5625623 + ... + 8464610.

It is an arithmetic number, because the mean of its divisors is an integer number (1915116424812).

Almost surely, 2^{20001001202102} is an apocalyptic number.

20001001202102 is a deficient number, since it is larger than the sum of its proper divisors (10640861594890).

20001001202102 is a wasteful number, since it uses less digits than its factorization.

20001001202102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14105383.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20001001202102 its reverse (20120210010002), we get a palindrome (40121211212104).

The spelling of 20001001202102 in words is "twenty trillion, one billion, one million, two hundred two thousand, one hundred two".