121100004044120 has 64 divisors (see below), whose sum is σ = 272546762826240. Its totient is φ = 48427247088000.

The previous prime is 121100004044057. The next prime is 121100004044141. The reversal of 121100004044120 is 21440400001121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 121100004044092 and 121100004044101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4238549435 + ... + 4238578005.

It is an arithmetic number, because the mean of its divisors is an integer number (4258543169160).

Almost surely, 2^{121100004044120} is an apocalyptic number.

121100004044120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121100004044120 is an abundant number, since it is smaller than the sum of its proper divisors (151446758782120).

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

121100004044120 is a wasteful number, since it uses less digits than its factorization.

121100004044120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52776 (or 52772 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 121100004044120 its reverse (21440400001121), we get a palindrome (142540404045241).

The spelling of 121100004044120 in words is "one hundred twenty-one trillion, one hundred billion, four million, forty-four thousand, one hundred twenty".