121121011100110 has 96 divisors (see below), whose sum is σ = 269118555880608. Its totient is φ = 38998901975040.

The previous prime is 121121011100099. The next prime is 121121011100113. The reversal of 121121011100110 is 11001110121121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121121011100113) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12101656 + ... + 19715275.

It is an arithmetic number, because the mean of its divisors is an integer number (2803318290423).

Almost surely, 2^{121121011100110} is an apocalyptic number.

121121011100110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121121011100110 is an abundant number, since it is smaller than the sum of its proper divisors (147997544780498).

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

121121011100110 is a wasteful number, since it uses less digits than its factorization.

121121011100110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31817426 (or 31817419 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 121121011100110 its reverse (11001110121121), we get a palindrome (132122121221231).

The spelling of 121121011100110 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, eleven million, one hundred thousand, one hundred ten".