2111252501 has 16 divisors (see below), whose sum is σ = 2229448320. Its totient is φ = 1995364800.

The previous prime is 2111252497. The next prime is 2111252503. The reversal of 2111252501 is 1052521112.

It is a cyclic number.

It is not a de Polignac number, because 2111252501 - 2² = 2111252497 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111252503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1109651 + ... + 1111551.

It is an arithmetic number, because the mean of its divisors is an integer number (139340520).

Almost surely, 2^2111252501 is an apocalyptic number.

It is an amenable number.

2111252501 is a deficient number, since it is larger than the sum of its proper divisors (118195819).

2111252501 is a wasteful number, since it uses less digits than its factorization.

2111252501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2476.

The product of its (nonzero) digits is 200, while the sum is 20.

The square root of 2111252501 is about 45948.3677729688. The cubic root of 2111252501 is about 1282.8623486888.

Adding to 2111252501 its reverse (1052521112), we get a palindrome (3163773613).

The spelling of 2111252501 in words is "two billion, one hundred eleven million, two hundred fifty-two thousand, five hundred one".