121121122010 has 32 divisors (see below), whose sum is σ = 249179559552. Its totient is φ = 41524557120.

The previous prime is 121121121991. The next prime is 121121122037. The reversal of 121121122010 is 10221121121.

It is a super-2 number, since 2×121121122010² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

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 15 ways as a sum of consecutive naturals, for example, 1251209 + ... + 1344531.

It is an arithmetic number, because the mean of its divisors is an integer number (7786861236).

Almost surely, 2^121121122010 is an apocalyptic number.

121121122010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121121122010 is an abundant number, since it is smaller than the sum of its proper divisors (128058437542).

121121122010 is a wasteful number, since it uses less digits than its factorization.

121121122010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111878.

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

Adding to 121121122010 its reverse (10221121121), we get a palindrome (131342243131).

The spelling of 121121122010 in words is "one hundred twenty-one billion, one hundred twenty-one million, one hundred twenty-two thousand, ten".