121120001221120 has 80 divisors (see below), whose sum is σ = 316804503267648. Its totient is φ = 44043636797440.

The previous prime is 121120001221103. The next prime is 121120001221139. The reversal of 121120001221120 is 21122100021121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×121120001221120² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 121120001221094 and 121120001221103.

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 7 ways as a sum of consecutive naturals, for example, 2150540044 + ... + 2150596363.

Almost surely, 2^{121120001221120} is an apocalyptic number.

121120001221120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121120001221120 is an abundant number, since it is smaller than the sum of its proper divisors (195684502046528).

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

121120001221120 is an equidigital number, since it uses as much as digits as its factorization.

121120001221120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4301136441 (or 4301136425 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 121120001221120 its reverse (21122100021121), we get a palindrome (142242101242241).

The spelling of 121120001221120 in words is "one hundred twenty-one trillion, one hundred twenty billion, one million, two hundred twenty-one thousand, one hundred twenty".