121602155982 has 16 divisors (see below), whose sum is σ = 243209371392. Its totient is φ = 40533208760.

The previous prime is 121602155947. The next prime is 121602155989. The reversal of 121602155982 is 289551206121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121602155989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148843 + ... + 515129.

It is an arithmetic number, because the mean of its divisors is an integer number (15200585712).

Almost surely, 2^121602155982 is an apocalyptic number.

121602155982 is an abundant number, since it is smaller than the sum of its proper divisors (121607215410).

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

121602155982 is a wasteful number, since it uses less digits than its factorization.

121602155982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421623.

The product of its (nonzero) digits is 86400, while the sum is 42.

The spelling of 121602155982 in words is "one hundred twenty-one billion, six hundred two million, one hundred fifty-five thousand, nine hundred eighty-two".