1221032120132 has 48 divisors (see below), whose sum is σ = 2478043471680. Its totient is φ = 520597296000.

The previous prime is 1221032120083. The next prime is 1221032120141. The reversal of 1221032120132 is 2310212301221.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7146083 + ... + 7314954.

It is an arithmetic number, because the mean of its divisors is an integer number (51625905660).

Almost surely, 2^{1221032120132} is an apocalyptic number.

It is an amenable number.

1221032120132 is an abundant number, since it is smaller than the sum of its proper divisors (1257011351548).

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

1221032120132 is a wasteful number, since it uses less digits than its factorization.

1221032120132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14461172 (or 14461170 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1221032120132 its reverse (2310212301221), we get a palindrome (3531244421353).

The spelling of 1221032120132 in words is "one trillion, two hundred twenty-one billion, thirty-two million, one hundred twenty thousand, one hundred thirty-two".