212032030121 has 4 divisors (see below), whose sum is σ = 212035281744. Its totient is φ = 212028778500.

The previous prime is 212032030109. The next prime is 212032030123. The reversal of 212032030121 is 121030230212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212032030121 - 2⁶ = 212032030057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 212032030121.

It is not an unprimeable number, because it can be changed into a prime (212032030123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1525955 + ... + 1659096.

It is an arithmetic number, because the mean of its divisors is an integer number (53008820436).

Almost surely, 2^212032030121 is an apocalyptic number.

It is an amenable number.

212032030121 is a deficient number, since it is larger than the sum of its proper divisors (3251623).

212032030121 is an equidigital number, since it uses as much as digits as its factorization.

212032030121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3251622.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212032030121 its reverse (121030230212), we get a palindrome (333062260333).

The spelling of 212032030121 in words is "two hundred twelve billion, thirty-two million, thirty thousand, one hundred twenty-one".