1220211211232 has 24 divisors (see below), whose sum is σ = 2587082424696. Its totient is φ = 563174404992.

The previous prime is 1220211211223. The next prime is 1220211211253. The reversal of 1220211211232 is 2321121120221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1466599598 + ... + 1466600429.

It is an arithmetic number, because the mean of its divisors is an integer number (107795101029).

Almost surely, 2^{1220211211232} is an apocalyptic number.

It is an amenable number.

1220211211232 is an abundant number, since it is smaller than the sum of its proper divisors (1366871213464).

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

1220211211232 is a wasteful number, since it uses less digits than its factorization.

1220211211232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2933200050 (or 2933200042 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 1220211211232 its reverse (2321121120221), we get a palindrome (3541332331453).

The spelling of 1220211211232 in words is "one trillion, two hundred twenty billion, two hundred eleven million, two hundred eleven thousand, two hundred thirty-two".