2120000001 has 16 divisors (see below), whose sum is σ = 3299211264. Its totient is φ = 1185652944.

The previous prime is 2119999919. The next prime is 2120000017. The reversal of 2120000001 is 1000000212.

It is a happy number.

It is not a de Polignac number, because 2120000001 - 2⁹ = 2119999489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120000041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1072975 + ... + 1074948.

It is an arithmetic number, because the mean of its divisors is an integer number (206200704).

Almost surely, 2^2120000001 is an apocalyptic number.

2120000001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2120000001 is a deficient number, since it is larger than the sum of its proper divisors (1179211263).

2120000001 is a wasteful number, since it uses less digits than its factorization.

2120000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2147980.

The product of its (nonzero) digits is 4, while the sum is 6.

The square root of 2120000001 is about 46043.4577437447. The cubic root of 2120000001 is about 1284.6316579145.

Adding to 2120000001 its reverse (1000000212), we get a palindrome (3120000213).

The spelling of 2120000001 in words is "two billion, one hundred twenty million, one", and thus it is an aban number.