121021265332000 has 192 divisors, whose sum is σ = 325437650778240. Its totient is φ = 43864380288000.

The previous prime is 121021265331943. The next prime is 121021265332003. The reversal of 121021265332000 is 233562120121.

It is a super-2 number, since 2×121021265332000² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121021265332000.

It is not an unprimeable number, because it can be changed into a prime (121021265332003) 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, 9028386 + ... + 17987614.

It is an arithmetic number, because the mean of its divisors is an integer number (1694987764470).

Almost surely, 2^{121021265332000} is an apocalyptic number.

121021265332000 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 121021265332000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162718825389120).

121021265332000 is an abundant number, since it is smaller than the sum of its proper divisors (204416385446240).

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

121021265332000 is a wasteful number, since it uses less digits than its factorization.

121021265332000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8959572 (or 8959554 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 121021265332000 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred sixty-five million, three hundred thirty-two thousand".