2112150021 has 8 divisors (see below), whose sum is σ = 2822081280. Its totient is φ = 1405159392.

The previous prime is 2112149993. The next prime is 2112150041. The reversal of 2112150021 is 1200512112.

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

It is not a de Polignac number, because 2112150021 - 2¹⁴ = 2112133637 is a prime.

It is a super-2 number, since 2×2112150021² = 8922355422420600882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2112150041) 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 7 ways as a sum of consecutive naturals, for example, 733480 + ... + 736353.

It is an arithmetic number, because the mean of its divisors is an integer number (352760160).

Almost surely, 2^2112150021 is an apocalyptic number.

It is an amenable number.

2112150021 is a deficient number, since it is larger than the sum of its proper divisors (709931259).

2112150021 is a wasteful number, since it uses less digits than its factorization.

2112150021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1470315.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 2112150021 is about 45958.1333498218. The cubic root of 2112150021 is about 1283.0441099096.

Adding to 2112150021 its reverse (1200512112), we get a palindrome (3312662133).

The spelling of 2112150021 in words is "two billion, one hundred twelve million, one hundred fifty thousand, twenty-one".