121120221101000 has 512 divisors, whose sum is σ = 329623886592000. Its totient is φ = 41194541952000.

The previous prime is 121120221100979. The next prime is 121120221101023. The reversal of 121120221101000 is 101122021121.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6447013607 + ... + 6447032393.

It is an arithmetic number, because the mean of its divisors is an integer number (643796653500).

Almost surely, 2^{121120221101000} is an apocalyptic number.

121120221101000 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 121120221101000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164811943296000).

121120221101000 is an abundant number, since it is smaller than the sum of its proper divisors (208503665491000).

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

121120221101000 is a wasteful number, since it uses less digits than its factorization.

121120221101000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19230 (or 19216 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 121120221101000 its reverse (101122021121), we get a palindrome (121221343122121).

The spelling of 121120221101000 in words is "one hundred twenty-one trillion, one hundred twenty billion, two hundred twenty-one million, one hundred one thousand".