2112154025 has 12 divisors (see below), whose sum is σ = 2636420544. Its totient is φ = 1678530000.

The previous prime is 2112153977. The next prime is 2112154027. The reversal of 2112154025 is 5204512112.

It is not a de Polignac number, because 2112154025 - 2¹² = 2112149929 is a prime.

It is a super-2 number, since 2×2112154025² = 8922389250647401250, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2112154027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 275981 + ... + 283530.

It is an arithmetic number, because the mean of its divisors is an integer number (219701712).

Almost surely, 2^2112154025 is an apocalyptic number.

2112154025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

2112154025 is a deficient number, since it is larger than the sum of its proper divisors (524266519).

2112154025 is a wasteful number, since it uses less digits than its factorization.

2112154025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559672 (or 559667 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 23.

The square root of 2112154025 is about 45958.1769111874. The cubic root of 2112154025 is about 1283.0449206641.

Adding to 2112154025 its reverse (5204512112), we get a palindrome (7316666137).

The spelling of 2112154025 in words is "two billion, one hundred twelve million, one hundred fifty-four thousand, twenty-five".