212032412021 has 4 divisors (see below), whose sum is σ = 214090979232. Its totient is φ = 209973844812.

The previous prime is 212032411979. The next prime is 212032412063. The reversal of 212032412021 is 120214230212.

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 an interprime number because it is at equal distance from previous prime (212032411979) and next prime (212032412063).

It is a cyclic number.

It is not a de Polignac number, because 212032412021 - 2¹⁸ = 212032149877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212032411984 and 212032412002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212032412821) 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, 1029283451 + ... + 1029283656.

It is an arithmetic number, because the mean of its divisors is an integer number (53522744808).

Almost surely, 2^212032412021 is an apocalyptic number.

It is an amenable number.

212032412021 is a deficient number, since it is larger than the sum of its proper divisors (2058567211).

212032412021 is a wasteful number, since it uses less digits than its factorization.

212032412021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058567210.

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

Adding to 212032412021 its reverse (120214230212), we get a palindrome (332246642233).

The spelling of 212032412021 in words is "two hundred twelve billion, thirty-two million, four hundred twelve thousand, twenty-one".