215354051201 has 4 divisors (see below), whose sum is σ = 215357424900. Its totient is φ = 215350677504.

The previous prime is 215354051179. The next prime is 215354051251. The reversal of 215354051201 is 102150453512.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 183461448976 + 31892602225 = 428324^2 + 178585^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215354051201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215354051251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1589216 + ... + 1719393.

It is an arithmetic number, because the mean of its divisors is an integer number (53839356225).

Almost surely, 2^215354051201 is an apocalyptic number.

It is an amenable number.

215354051201 is a deficient number, since it is larger than the sum of its proper divisors (3373699).

215354051201 is an equidigital number, since it uses as much as digits as its factorization.

215354051201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3373698.

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 215354051201 in words is "two hundred fifteen billion, three hundred fifty-four million, fifty-one thousand, two hundred one".