21100120111202 has 16 divisors (see below), whose sum is σ = 36028663589952. Its totient is φ = 9173965265520.

The previous prime is 21100120111171. The next prime is 21100120111223. The reversal of 21100120111202 is 20211102100112.

It is a super-2 number, since 2×21100120111202² (a number of 27 digits) contains 22 as substring.

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, 20849920553 + ... + 20849921564.

It is an arithmetic number, because the mean of its divisors is an integer number (2251791474372).

Almost surely, 2^{21100120111202} is an apocalyptic number.

21100120111202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21100120111202 is a deficient number, since it is larger than the sum of its proper divisors (14928543478750).

21100120111202 is a wasteful number, since it uses less digits than its factorization.

21100120111202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41699842153.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 21100120111202 its reverse (20211102100112), we get a palindrome (41311222211314).

The spelling of 21100120111202 in words is "twenty-one trillion, one hundred billion, one hundred twenty million, one hundred eleven thousand, two hundred two".