10120021221000 has 128 divisors (see below), whose sum is σ = 32663241187200. Its totient is φ = 2605614636800.

The previous prime is 10120021220983. The next prime is 10120021221061. The reversal of 10120021221000 is 12212002101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58074042 + ... + 58248041.

It is an arithmetic number, because the mean of its divisors is an integer number (255181571775).

Almost surely, 2^{10120021221000} is an apocalyptic number.

10120021221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10120021221000 is an abundant number, since it is smaller than the sum of its proper divisors (22543219966200).

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

10120021221000 is a wasteful number, since it uses less digits than its factorization.

10120021221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116322136 (or 116322122 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10120021221000 its reverse (12212002101), we get a palindrome (10132233223101).

The spelling of 10120021221000 in words is "ten trillion, one hundred twenty billion, twenty-one million, two hundred twenty-one thousand".