120221021000000 has 98 divisors (see below), whose sum is σ = 298200671146614. Its totient is φ = 48088408000000.

The previous prime is 120221020999993. The next prime is 120221021000027. The reversal of 120221021000000 is 120122021.

It is a happy number.

It can be written as a sum of positive squares in 7 ways, for example, as 114468429816064 + 5752591183936 = 10698992^2 + 2398456^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 59110511 + ... + 61110510.

Almost surely, 2^{120221021000000} is an apocalyptic number.

120221021000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120221021000000 is an abundant number, since it is smaller than the sum of its proper divisors (177979650146614).

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

120221021000000 is an frugal number, since it uses more digits than its factorization.

120221021000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120221063 (or 120221028 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 120221021000000 its reverse (120122021), we get a palindrome (120221141122021).

The spelling of 120221021000000 in words is "one hundred twenty trillion, two hundred twenty-one billion, twenty-one million", and thus it is an aban number.