121120021302 has 64 divisors (see below), whose sum is σ = 281405466624. Its totient is φ = 34038351360.

The previous prime is 121120021289. The next prime is 121120021327. The reversal of 121120021302 is 203120021121.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 1071402 + ... + 1179042.

It is an arithmetic number, because the mean of its divisors is an integer number (4396960416).

Almost surely, 2^121120021302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121120021302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140702733312).

121120021302 is an abundant number, since it is smaller than the sum of its proper divisors (160285445322).

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

121120021302 is a wasteful number, since it uses less digits than its factorization.

121120021302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108093.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121120021302 its reverse (203120021121), we get a palindrome (324240042423).

The spelling of 121120021302 in words is "one hundred twenty-one billion, one hundred twenty million, twenty-one thousand, three hundred two".