2021221120232 has 32 divisors (see below), whose sum is σ = 3932997611400. Its totient is φ = 972644434944.

The previous prime is 2021221120231. The next prime is 2021221120249. The reversal of 2021221120232 is 2320211221202.

It can be written as a sum of positive squares in 4 ways, for example, as 779275810756 + 1241945309476 = 882766^2 + 1114426^2 .

It is not an unprimeable number, because it can be changed into a prime (2021221120231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13844573 + ... + 13989804.

Almost surely, 2^{2021221120232} is an apocalyptic number.

It is an amenable number.

2021221120232 is a deficient number, since it is larger than the sum of its proper divisors (1911776491168).

2021221120232 is a wasteful number, since it uses less digits than its factorization.

2021221120232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27834725 (or 27834721 counting only the distinct ones).

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

Adding to 2021221120232 its reverse (2320211221202), we get a palindrome (4341432341434).

The spelling of 2021221120232 in words is "two trillion, twenty-one billion, two hundred twenty-one million, one hundred twenty thousand, two hundred thirty-two".