20111121101102 has 16 divisors (see below), whose sum is σ = 30526414650000. Its totient is φ = 9936048590400.

The previous prime is 20111121101059. The next prime is 20111121101111. The reversal of 20111121101102 is 20110112111102.

It is a super-2 number, since 2×20111121101102² (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 7 ways as a sum of consecutive naturals, for example, 99658727 + ... + 99860322.

It is an arithmetic number, because the mean of its divisors is an integer number (1907900915625).

Almost surely, 2^{20111121101102} is an apocalyptic number.

20111121101102 is a deficient number, since it is larger than the sum of its proper divisors (10415293548898).

20111121101102 is a wasteful number, since it uses less digits than its factorization.

20111121101102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199519651.

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 20111121101102 its reverse (20110112111102), we get a palindrome (40221233212204).

The spelling of 20111121101102 in words is "twenty trillion, one hundred eleven billion, one hundred twenty-one million, one hundred one thousand, one hundred two".