2121150156 has 12 divisors (see below), whose sum is σ = 4949350392. Its totient is φ = 707050048.

The previous prime is 2121150151. The next prime is 2121150167. The reversal of 2121150156 is 6510511212.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (2121150151) 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 3 ways as a sum of consecutive naturals, for example, 88381245 + ... + 88381268.

It is an arithmetic number, because the mean of its divisors is an integer number (412445866).

Almost surely, 2^2121150156 is an apocalyptic number.

It is an amenable number.

2121150156 is an abundant number, since it is smaller than the sum of its proper divisors (2828200236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121150156 is a wasteful number, since it uses less digits than its factorization.

2121150156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176762520 (or 176762518 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 24.

The square root of 2121150156 is about 46055.9459353513. The cubic root of 2121150156 is about 1284.8639312487.

Adding to 2121150156 its reverse (6510511212), we get a palindrome (8631661368).

The spelling of 2121150156 in words is "two billion, one hundred twenty-one million, one hundred fifty thousand, one hundred fifty-six".