213331201202021 has 8 divisors (see below), whose sum is σ = 243807628244544. Its totient is φ = 182854909448640.

The previous prime is 213331201201957. The next prime is 213331201202033. The reversal of 213331201202021 is 120202102133312.

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

It is a cyclic number.

It is not a de Polignac number, because 213331201202021 - 2⁶ = 213331201201957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213331201202071) 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, 30420500 + ... + 36770493.

It is an arithmetic number, because the mean of its divisors is an integer number (30475953530568).

Almost surely, 2^{213331201202021} is an apocalyptic number.

It is an amenable number.

213331201202021 is a deficient number, since it is larger than the sum of its proper divisors (30476427042523).

213331201202021 is an equidigital number, since it uses as much as digits as its factorization.

213331201202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67644571.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 213331201202021 its reverse (120202102133312), we get a palindrome (333533303335333).

The spelling of 213331201202021 in words is "two hundred thirteen trillion, three hundred thirty-one billion, two hundred one million, two hundred two thousand, twenty-one".