2120012201 has 8 divisors (see below), whose sum is σ = 2194480200. Its totient is φ = 2045635200.

The previous prime is 2120012179. The next prime is 2120012203. The reversal of 2120012201 is 1022100212.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 389036176 + 1730976025 = 19724^2 + 41605^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2120012201 - 2¹⁴ = 2119995817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2120012203) 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, 26501 + ... + 70301.

It is an arithmetic number, because the mean of its divisors is an integer number (274310025).

Almost surely, 2^2120012201 is an apocalyptic number.

It is an amenable number.

2120012201 is a deficient number, since it is larger than the sum of its proper divisors (74467999).

2120012201 is a wasteful number, since it uses less digits than its factorization.

2120012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45499.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2120012201 is about 46043.5902270881. The cubic root of 2120012201 is about 1284.6341221403.

Adding to 2120012201 its reverse (1022100212), we get a palindrome (3142112413).

The spelling of 2120012201 in words is "two billion, one hundred twenty million, twelve thousand, two hundred one".