121121221002110 has 48 divisors (see below), whose sum is σ = 260467865886816. Its totient is φ = 39721742030784.

The previous prime is 121121221002107. The next prime is 121121221002137. The reversal of 121121221002110 is 11200122121121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1635410189 + ... + 1635484248.

It is an arithmetic number, because the mean of its divisors is an integer number (5426413872642).

Almost surely, 2^{121121221002110} is an apocalyptic number.

121121221002110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121121221002110 is an abundant number, since it is smaller than the sum of its proper divisors (139346644884706).

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

121121221002110 is a wasteful number, since it uses less digits than its factorization.

121121221002110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270894497 (or 3270894474 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 121121221002110 its reverse (11200122121121), we get a palindrome (132321343123231).

The spelling of 121121221002110 in words is "one hundred twenty-one trillion, one hundred twenty-one billion, two hundred twenty-one million, two thousand, one hundred ten".