121001370 has 64 divisors (see below), whose sum is σ = 342614016. Its totient is φ = 26763840.

The previous prime is 121001357. The next prime is 121001371. The reversal of 121001370 is 73100121.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121001371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2784 + ... + 15803.

It is an arithmetic number, because the mean of its divisors is an integer number (5353344).

Almost surely, 2^121001370 is an apocalyptic number.

121001370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121001370 is an abundant number, since it is smaller than the sum of its proper divisors (221612646).

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

121001370 is a wasteful number, since it uses less digits than its factorization.

121001370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18635.

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 121001370 is about 11000.0622725510. The cubic root of 121001370 is about 494.6106110230.

Adding to 121001370 its reverse (73100121), we get a palindrome (194101491).

The spelling of 121001370 in words is "one hundred twenty-one million, one thousand, three hundred seventy".