120021222012 has 48 divisors (see below), whose sum is σ = 290052403200. Its totient is φ = 38581385920.

The previous prime is 120021222001. The next prime is 120021222043. The reversal of 120021222012 is 210222120021.

It is a junction number, because it is equal to n+sod(n) for n = 120021221982 and 120021222000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86437 + ... + 497507.

It is an arithmetic number, because the mean of its divisors is an integer number (6042758400).

Almost surely, 2^120021222012 is an apocalyptic number.

120021222012 is a gapful number since it is divisible by the number (12) 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 120021222012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145026201600).

120021222012 is an abundant number, since it is smaller than the sum of its proper divisors (170031181188).

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

120021222012 is a wasteful number, since it uses less digits than its factorization.

120021222012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411946 (or 411944 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 120021222012 its reverse (210222120021), we get a palindrome (330243342033).

The spelling of 120021222012 in words is "one hundred twenty billion, twenty-one million, two hundred twenty-two thousand, twelve".