121004544210 has 128 divisors (see below), whose sum is σ = 327941602560. Its totient is φ = 28305177600.

The previous prime is 121004544209. The next prime is 121004544247. The reversal of 121004544210 is 12445400121.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 21252124 + ... + 21257816.

It is an arithmetic number, because the mean of its divisors is an integer number (2562043770).

Almost surely, 2^121004544210 is an apocalyptic number.

121004544210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121004544210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163970801280).

121004544210 is an abundant number, since it is smaller than the sum of its proper divisors (206937058350).

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

121004544210 is a wasteful number, since it uses less digits than its factorization.

121004544210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7964.

The product of its (nonzero) digits is 1280, while the sum is 24.

Adding to 121004544210 its reverse (12445400121), we get a palindrome (133449944331).

The spelling of 121004544210 in words is "one hundred twenty-one billion, four million, five hundred forty-four thousand, two hundred ten".