120021220220 has 48 divisors (see below), whose sum is σ = 275173663968. Its totient is φ = 43609800960.

The previous prime is 120021220211. The next prime is 120021220283. The reversal of 120021220220 is 22022120021.

It is a junction number, because it is equal to n+sod(n) for n = 120021220195 and 120021220204.

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, 67334 + ... + 494546.

It is an arithmetic number, because the mean of its divisors is an integer number (5732784666).

Almost surely, 2^120021220220 is an apocalyptic number.

120021220220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

120021220220 is an abundant number, since it is smaller than the sum of its proper divisors (155152443748).

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

120021220220 is a wasteful number, since it uses less digits than its factorization.

120021220220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428510 (or 428508 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 120021220220 its reverse (22022120021), we get a palindrome (142043340241).

The spelling of 120021220220 in words is "one hundred twenty billion, twenty-one million, two hundred twenty thousand, two hundred twenty".