1132223121221 has 32 divisors (see below), whose sum is σ = 1245958668288. Its totient is φ = 1025391755520.

The previous prime is 1132223121203. The next prime is 1132223121233. The reversal of 1132223121221 is 1221213222311.

It is not a de Polignac number, because 1132223121221 - 2³⁸ = 857345214277 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1132223121251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 143188550 + ... + 143196456.

It is an arithmetic number, because the mean of its divisors is an integer number (38936208384).

Almost surely, 2^{1132223121221} is an apocalyptic number.

It is an amenable number.

1132223121221 is a deficient number, since it is larger than the sum of its proper divisors (113735547067).

1132223121221 is a wasteful number, since it uses less digits than its factorization.

1132223121221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12281.

The product of its digits is 576, while the sum is 23.

Adding to 1132223121221 its reverse (1221213222311), we get a palindrome (2353436343532).

The spelling of 1132223121221 in words is "one trillion, one hundred thirty-two billion, two hundred twenty-three million, one hundred twenty-one thousand, two hundred twenty-one".