121002101110 has 64 divisors (see below), whose sum is σ = 238417115904. Its totient is φ = 43850505600.

The previous prime is 121002101081. The next prime is 121002101111. The reversal of 121002101110 is 11101200121.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002101111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54479800 + ... + 54482020.

It is an arithmetic number, because the mean of its divisors is an integer number (3725267436).

Almost surely, 2^121002101110 is an apocalyptic number.

121002101110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121002101110 is a deficient number, since it is larger than the sum of its proper divisors (117415014794).

121002101110 is a wasteful number, since it uses less digits than its factorization.

121002101110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3709.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 121002101110 its reverse (11101200121), we get a palindrome (132103301231).

The spelling of 121002101110 in words is "one hundred twenty-one billion, two million, one hundred one thousand, one hundred ten".