121602156000 has 384 divisors, whose sum is σ = 454258336896. Its totient is φ = 28171468800.

The previous prime is 121602155999. The next prime is 121602156029. The reversal of 121602156000 is 651206121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent 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, 2629074 + ... + 2674926.

It is an arithmetic number, because the mean of its divisors is an integer number (1182964419).

Almost surely, 2^121602156000 is an apocalyptic number.

121602156000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121602156000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227129168448).

121602156000 is an abundant number, since it is smaller than the sum of its proper divisors (332656180896).

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

121602156000 is a wasteful number, since it uses less digits than its factorization.

121602156000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45911 (or 45893 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The spelling of 121602156000 in words is "one hundred twenty-one billion, six hundred two million, one hundred fifty-six thousand".