2151522201 has 8 divisors (see below), whose sum is σ = 2869170304. Its totient is φ = 1434111120.

The previous prime is 2151522199. The next prime is 2151522239. The reversal of 2151522201 is 1022251512.

2151522201 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2151522201 - 2¹ = 2151522199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2151522251) 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, 36865 + ... + 75246.

It is an arithmetic number, because the mean of its divisors is an integer number (358646288).

Almost surely, 2^2151522201 is an apocalyptic number.

It is an amenable number.

2151522201 is a deficient number, since it is larger than the sum of its proper divisors (717648103).

2151522201 is a wasteful number, since it uses less digits than its factorization.

2151522201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118511.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 2151522201 is about 46384.5038886911. The cubic root of 2151522201 is about 1290.9674054574.

Adding to 2151522201 its reverse (1022251512), we get a palindrome (3173773713).

The spelling of 2151522201 in words is "two billion, one hundred fifty-one million, five hundred twenty-two thousand, two hundred one".