213122012204 has 6 divisors (see below), whose sum is σ = 372963521364. Its totient is φ = 106561006100.

The previous prime is 213122012203. The next prime is 213122012231. The reversal of 213122012204 is 402210221312.

It is not an unprimeable number, because it can be changed into a prime (213122012203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26640251522 + ... + 26640251529.

It is an arithmetic number, because the mean of its divisors is an integer number (62160586894).

Almost surely, 2^213122012204 is an apocalyptic number.

It is an amenable number.

213122012204 is a deficient number, since it is larger than the sum of its proper divisors (159841509160).

213122012204 is a wasteful number, since it uses less digits than its factorization.

213122012204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53280503055 (or 53280503053 counting only the distinct ones).

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

Adding to 213122012204 its reverse (402210221312), we get a palindrome (615332233516).

The spelling of 213122012204 in words is "two hundred thirteen billion, one hundred twenty-two million, twelve thousand, two hundred four".