121001300102100 has 144 divisors (see below), whose sum is σ = 383128914805056. Its totient is φ = 29241113088000.

The previous prime is 121001300102093. The next prime is 121001300102153. The reversal of 121001300102100 is 1201003100121.

It is a super-5 number, since 5×121001300102100⁵ (a number of 72 digits) contains 55555 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 56788381 + ... + 58880580.

It is an arithmetic number, because the mean of its divisors is an integer number (2660617463924).

Almost surely, 2^{121001300102100} is an apocalyptic number.

121001300102100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121001300102100 is an abundant number, since it is smaller than the sum of its proper divisors (262127614702956).

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

121001300102100 is a wasteful number, since it uses less digits than its factorization.

121001300102100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115669306 (or 115669299 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 121001300102100 its reverse (1201003100121), we get a palindrome (122202303202221).

The spelling of 121001300102100 in words is "one hundred twenty-one trillion, one billion, three hundred million, one hundred two thousand, one hundred".