120021211320 has 32 divisors (see below), whose sum is σ = 360063634320. Its totient is φ = 32005656320.

The previous prime is 120021211313. The next prime is 120021211327. The reversal of 120021211320 is 23112120021.

120021211320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (120021211313) and next prime (120021211327).

It is a super-2 number, since 2×120021211320² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 120021211320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120021211327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500088261 + ... + 500088500.

Almost surely, 2^120021211320 is an apocalyptic number.

120021211320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021211320 is an abundant number, since it is smaller than the sum of its proper divisors (240042423000).

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

120021211320 is a wasteful number, since it uses less digits than its factorization.

120021211320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000176775 (or 1000176771 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 120021211320 its reverse (23112120021), we get a palindrome (143133331341).

The spelling of 120021211320 in words is "one hundred twenty billion, twenty-one million, two hundred eleven thousand, three hundred twenty".