20101111020202 has 16 divisors (see below), whose sum is σ = 32176674247680. Its totient is φ = 9384863318208.

The previous prime is 20101111020143. The next prime is 20101111020217. The reversal of 20101111020202 is 20202011110102.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2327590752 + ... + 2327599387.

It is an arithmetic number, because the mean of its divisors is an integer number (2011042140480).

Almost surely, 2^{20101111020202} is an apocalyptic number.

20101111020202 is a deficient number, since it is larger than the sum of its proper divisors (12075563227478).

20101111020202 is a wasteful number, since it uses less digits than its factorization.

20101111020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4655190285.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20101111020202 its reverse (20202011110102), we get a palindrome (40303122130304).

The spelling of 20101111020202 in words is "twenty trillion, one hundred one billion, one hundred eleven million, twenty thousand, two hundred two".