213262121600 has 96 divisors (see below), whose sum is σ = 574717278240. Its totient is φ = 77549849600.

The previous prime is 213262121573. The next prime is 213262121609. The reversal of 213262121600 is 6121262312.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 213262121600.

It is not an unprimeable number, because it can be changed into a prime (213262121609) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2994092 + ... + 3064491.

It is an arithmetic number, because the mean of its divisors is an integer number (5986638315).

Almost surely, 2^213262121600 is an apocalyptic number.

213262121600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213262121600 is an abundant number, since it is smaller than the sum of its proper divisors (361455156640).

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

213262121600 is a wasteful number, since it uses less digits than its factorization.

213262121600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6058618 (or 6058601 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 213262121600 its reverse (6121262312), we get a palindrome (219383383912).

The spelling of 213262121600 in words is "two hundred thirteen billion, two hundred sixty-two million, one hundred twenty-one thousand, six hundred".