212303002021 has 16 divisors (see below), whose sum is σ = 236524536000. Its totient is φ = 188944624000.

The previous prime is 212303002019. The next prime is 212303002033. The reversal of 212303002021 is 120200303212.

It is not a de Polignac number, because 212303002021 - 2¹ = 212303002019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212303001986 and 212303002004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212303003021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 974671 + ... + 1172428.

It is an arithmetic number, because the mean of its divisors is an integer number (14782783500).

Almost surely, 2^212303002021 is an apocalyptic number.

It is an amenable number.

212303002021 is a deficient number, since it is larger than the sum of its proper divisors (24221533979).

212303002021 is a wasteful number, since it uses less digits than its factorization.

212303002021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147300.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 212303002021 its reverse (120200303212), we get a palindrome (332503305233).

The spelling of 212303002021 in words is "two hundred twelve billion, three hundred three million, two thousand, twenty-one".