20111002202001 has 16 divisors (see below), whose sum is σ = 28014277023360. Its totient is φ = 12808937433600.

The previous prime is 20111002201897. The next prime is 20111002202021. The reversal of 20111002202001 is 10020220011102.

It is not a de Polignac number, because 20111002202001 - 2⁹ = 20111002201489 is a prime.

It is a super-3 number, since 3×20111002202001³ (a number of 41 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (20111002202021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175735200 + ... + 175849601.

It is an arithmetic number, because the mean of its divisors is an integer number (1750892313960).

Almost surely, 2^{20111002202001} is an apocalyptic number.

It is an amenable number.

20111002202001 is a deficient number, since it is larger than the sum of its proper divisors (7903274821359).

20111002202001 is a wasteful number, since it uses less digits than its factorization.

20111002202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351585656.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 20111002202001 its reverse (10020220011102), we get a palindrome (30131222213103).

The spelling of 20111002202001 in words is "twenty trillion, one hundred eleven billion, two million, two hundred two thousand, one".