2132210231221 has 8 divisors (see below), whose sum is σ = 2493481732544. Its totient is φ = 1785106239840.

The previous prime is 2132210231219. The next prime is 2132210231227. The reversal of 2132210231221 is 1221320122312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2132210231221 - 2¹ = 2132210231219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2132210231192 and 2132210231201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2132210231227) 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, 3541877160 + ... + 3541877761.

It is an arithmetic number, because the mean of its divisors is an integer number (311685216568).

Almost surely, 2^{2132210231221} is an apocalyptic number.

It is an amenable number.

2132210231221 is a deficient number, since it is larger than the sum of its proper divisors (361271501323).

2132210231221 is an equidigital number, since it uses as much as digits as its factorization.

2132210231221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7083754971.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 2132210231221 its reverse (1221320122312), we get a palindrome (3353530353533).

The spelling of 2132210231221 in words is "two trillion, one hundred thirty-two billion, two hundred ten million, two hundred thirty-one thousand, two hundred twenty-one".