213002121204 has 24 divisors (see below), whose sum is σ = 552227721920. Its totient is φ = 71000707032.

The previous prime is 213002121203. The next prime is 213002121223. The reversal of 213002121204 is 402121200312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213002121203) 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, 986120824 + ... + 986121039.

Almost surely, 2^213002121204 is an apocalyptic number.

It is an amenable number.

213002121204 is an abundant number, since it is smaller than the sum of its proper divisors (339225600716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213002121204 is a wasteful number, since it uses less digits than its factorization.

213002121204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1972241876 (or 1972241868 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 213002121204 its reverse (402121200312), we get a palindrome (615123321516).

The spelling of 213002121204 in words is "two hundred thirteen billion, two million, one hundred twenty-one thousand, two hundred four".