211421202104 has 32 divisors (see below), whose sum is σ = 457201826400. Its totient is φ = 89777808000.

The previous prime is 211421202101. The next prime is 211421202119. The reversal of 211421202104 is 401202124112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211421202101) 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, 17312147 + ... + 17324354.

It is an arithmetic number, because the mean of its divisors is an integer number (14287557075).

Almost surely, 2^211421202104 is an apocalyptic number.

It is an amenable number.

211421202104 is an abundant number, since it is smaller than the sum of its proper divisors (245780624296).

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

211421202104 is a wasteful number, since it uses less digits than its factorization.

211421202104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34636623 (or 34636619 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 211421202104 its reverse (401202124112), we get a palindrome (612623326216).

The spelling of 211421202104 in words is "two hundred eleven billion, four hundred twenty-one million, two hundred two thousand, one hundred four".