2115151201 has 4 divisors (see below), whose sum is σ = 2123928004. Its totient is φ = 2106374400.

The previous prime is 2115151183. The next prime is 2115151211. The reversal of 2115151201 is 1021515112.

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 652853601 + 1462297600 = 25551^2 + 38240^2 .

It is a cyclic number.

It is not a de Polignac number, because 2115151201 - 2⁹ = 2115150689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2115151211) 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, 4388040 + ... + 4388521.

It is an arithmetic number, because the mean of its divisors is an integer number (530982001).

Almost surely, 2^2115151201 is an apocalyptic number.

It is an amenable number.

2115151201 is a deficient number, since it is larger than the sum of its proper divisors (8776803).

2115151201 is an equidigital number, since it uses as much as digits as its factorization.

2115151201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8776802.

The product of its (nonzero) digits is 100, while the sum is 19.

The square root of 2115151201 is about 45990.7729985048. The cubic root of 2115151201 is about 1283.6515200386.

Adding to 2115151201 its reverse (1021515112), we get a palindrome (3136666313).

The spelling of 2115151201 in words is "two billion, one hundred fifteen million, one hundred fifty-one thousand, two hundred one".