1220033132220 has 96 divisors (see below), whose sum is σ = 3994899245568. Its totient is φ = 272379485952.

The previous prime is 1220033132141. The next prime is 1220033132231. The reversal of 1220033132220 is 222313300221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33759159 + ... + 33795278.

It is an arithmetic number, because the mean of its divisors is an integer number (41613533808).

Almost surely, 2^{1220033132220} is an apocalyptic number.

1220033132220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1220033132220 is an abundant number, since it is smaller than the sum of its proper divisors (2774866113348).

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

1220033132220 is a wasteful number, since it uses less digits than its factorization.

1220033132220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67554499 (or 67554497 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 1220033132220 its reverse (222313300221), we get a palindrome (1442346432441).

The spelling of 1220033132220 in words is "one trillion, two hundred twenty billion, thirty-three million, one hundred thirty-two thousand, two hundred twenty".