121301211120 has 80 divisors (see below), whose sum is σ = 398153400480. Its totient is φ = 30444224512.

The previous prime is 121301211041. The next prime is 121301211127. The reversal of 121301211120 is 21112103121.

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

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121301211120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121301211127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14861265 + ... + 14869424.

It is an arithmetic number, because the mean of its divisors is an integer number (4976917506).

Almost surely, 2^121301211120 is an apocalyptic number.

121301211120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121301211120 is an abundant number, since it is smaller than the sum of its proper divisors (276852189360).

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

121301211120 is a wasteful number, since it uses less digits than its factorization.

121301211120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29730722 (or 29730716 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 121301211120 its reverse (21112103121), we get a palindrome (142413314241).

The spelling of 121301211120 in words is "one hundred twenty-one billion, three hundred one million, two hundred eleven thousand, one hundred twenty".