1220201221232 has 20 divisors (see below), whose sum is σ = 2701874132976. Its totient is φ = 522943380480.

The previous prime is 1220201221199. The next prime is 1220201221237. The reversal of 1220201221232 is 2321221020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220201221237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5447326769 + ... + 5447326992.

Almost surely, 2^{1220201221232} is an apocalyptic number.

It is an amenable number.

1220201221232 is an abundant number, since it is smaller than the sum of its proper divisors (1481672911744).

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

1220201221232 is a wasteful number, since it uses less digits than its factorization.

1220201221232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10894653776 (or 10894653770 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1220201221232 its reverse (2321221020221), we get a palindrome (3541422241453).

The spelling of 1220201221232 in words is "one trillion, two hundred twenty billion, two hundred one million, two hundred twenty-one thousand, two hundred thirty-two".