21210202002195 has 24 divisors (see below), whose sum is σ = 36764485956432. Its totient is φ = 11312065944000.

The previous prime is 21210202002169. The next prime is 21210202002247. The reversal of 21210202002195 is 59120020201212.

It is a happy number.

21210202002195 is a `hidden beast` number, since 212 + 10 + 20 + 200 + 219 + 5 = 666.

It is not a de Polignac number, because 21210202002195 - 2⁹ = 21210202001683 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14381920 + ... + 15787970.

It is an arithmetic number, because the mean of its divisors is an integer number (1531853581518).

Almost surely, 2^{21210202002195} is an apocalyptic number.

21210202002195 is a deficient number, since it is larger than the sum of its proper divisors (15554283954237).

21210202002195 is a wasteful number, since it uses less digits than its factorization.

21210202002195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741283 (or 1741280 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The spelling of 21210202002195 in words is "twenty-one trillion, two hundred ten billion, two hundred two million, two thousand, one hundred ninety-five".