121351341100 has 36 divisors (see below), whose sum is σ = 287271722808. Its totient is φ = 44127760000.

The previous prime is 121351341047. The next prime is 121351341107. The reversal of 121351341100 is 1143153121.

It is a happy number.

It is a super-2 number, since 2×121351341100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (121351341107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55158601 + ... + 55160800.

It is an arithmetic number, because the mean of its divisors is an integer number (7979770078).

Almost surely, 2^121351341100 is an apocalyptic number.

121351341100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121351341100 is an abundant number, since it is smaller than the sum of its proper divisors (165920381708).

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

121351341100 is a wasteful number, since it uses less digits than its factorization.

121351341100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110319426 (or 110319419 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 121351341100 its reverse (1143153121), we get a palindrome (122494494221).

The spelling of 121351341100 in words is "one hundred twenty-one billion, three hundred fifty-one million, three hundred forty-one thousand, one hundred".