20101211200110 has 32 divisors (see below), whose sum is σ = 48243715502112. Its totient is φ = 5360233139840.

The previous prime is 20101211200079. The next prime is 20101211200117. The reversal of 20101211200110 is 1100211210102.

It is a super-2 number, since 2×20101211200110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101211200117) 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, 3786009 + ... + 7384868.

It is an arithmetic number, because the mean of its divisors is an integer number (1507616109441).

Almost surely, 2^{20101211200110} is an apocalyptic number.

20101211200110 is an abundant number, since it is smaller than the sum of its proper divisors (28142504302002).

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

20101211200110 is a wasteful number, since it uses less digits than its factorization.

20101211200110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11230868.

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

Adding to 20101211200110 its reverse (1100211210102), we get a palindrome (21201422410212).

The spelling of 20101211200110 in words is "twenty trillion, one hundred one billion, two hundred eleven million, two hundred thousand, one hundred ten".