1220021011132 has 24 divisors (see below), whose sum is σ = 2661864024960. Its totient is φ = 475332861360.

The previous prime is 1220021011103. The next prime is 1220021011163. The reversal of 1220021011132 is 2311101200221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1980553282 + ... + 1980553897.

It is an arithmetic number, because the mean of its divisors is an integer number (110911001040).

Almost surely, 2^{1220021011132} is an apocalyptic number.

It is an amenable number.

1220021011132 is an abundant number, since it is smaller than the sum of its proper divisors (1441843013828).

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

1220021011132 is a wasteful number, since it uses less digits than its factorization.

1220021011132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3961107201 (or 3961107199 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1220021011132 its reverse (2311101200221), we get a palindrome (3531122211353).

The spelling of 1220021011132 in words is "one trillion, two hundred twenty billion, twenty-one million, eleven thousand, one hundred thirty-two".