20110101211102 has 12 divisors (see below), whose sum is σ = 35090074562400. Its totient is φ = 8618614804716.

The previous prime is 20110101211099. The next prime is 20110101211181. The reversal of 20110101211102 is 20111210101102.

It is a happy number.

It is a super-2 number, since 2×20110101211102² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 102602557102 + ... + 102602557297.

It is an arithmetic number, because the mean of its divisors is an integer number (2924172880200).

Almost surely, 2^{20110101211102} is an apocalyptic number.

20110101211102 is a deficient number, since it is larger than the sum of its proper divisors (14979973351298).

20110101211102 is a wasteful number, since it uses less digits than its factorization.

20110101211102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205205114415 (or 205205114408 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 20110101211102 its reverse (20111210101102), we get a palindrome (40221311312204).

Subtracting 20110101211102 from its reverse (20111210101102), we obtain a square (1108890000 = 33300²).

The spelling of 20110101211102 in words is "twenty trillion, one hundred ten billion, one hundred one million, two hundred eleven thousand, one hundred two".