1220302212120 has 384 divisors, whose sum is σ = 4091653051200. Its totient is φ = 315274752000.

The previous prime is 1220302212113. The next prime is 1220302212131. The reversal of 1220302212120 is 212122030221.

1220302212120 is a `hidden beast` number, since 1 + 220 + 302 + 2 + 121 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1220302212093 and 1220302212102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1100362126 + ... + 1100363234.

Almost surely, 2^{1220302212120} is an apocalyptic number.

1220302212120 is a gapful number since it is divisible by the number (10) 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 1220302212120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2045826525600).

1220302212120 is an abundant number, since it is smaller than the sum of its proper divisors (2871350839080).

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

1220302212120 is a wasteful number, since it uses less digits than its factorization.

1220302212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1851 (or 1844 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 1220302212120 its reverse (212122030221), we get a palindrome (1432424242341).

The spelling of 1220302212120 in words is "one trillion, two hundred twenty billion, three hundred two million, two hundred twelve thousand, one hundred twenty".