121101223131100 has 36 divisors (see below), whose sum is σ = 271851366414600. Its totient is φ = 46770127552960.

The previous prime is 121101223131041. The next prime is 121101223131143. The reversal of 121101223131100 is 1131322101121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20879518330 + ... + 20879524129.

It is an arithmetic number, because the mean of its divisors is an integer number (7551426844850).

Almost surely, 2^{121101223131100} is an apocalyptic number.

121101223131100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121101223131100 is an abundant number, since it is smaller than the sum of its proper divisors (150750143283500).

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

121101223131100 is a wasteful number, since it uses less digits than its factorization.

121101223131100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41759042502 (or 41759042495 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 121101223131100 its reverse (1131322101121), we get a palindrome (122232545232221).

The spelling of 121101223131100 in words is "one hundred twenty-one trillion, one hundred one billion, two hundred twenty-three million, one hundred thirty-one thousand, one hundred".