2121141402 has 48 divisors (see below), whose sum is σ = 4725588192. Its totient is φ = 687126240.

The previous prime is 2121141371. The next prime is 2121141413. The reversal of 2121141402 is 2041411212.

2121141402 is a `hidden beast` number, since 2 + 121 + 141 + 402 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 858573 + ... + 861039.

It is an arithmetic number, because the mean of its divisors is an integer number (98449754).

Almost surely, 2^2121141402 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2121141402, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2362794096).

2121141402 is an abundant number, since it is smaller than the sum of its proper divisors (2604446790).

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

2121141402 is a wasteful number, since it uses less digits than its factorization.

2121141402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3803 (or 3800 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 2121141402 is about 46055.8508986643. The cubic root of 2121141402 is about 1284.8621636991.

Adding to 2121141402 its reverse (2041411212), we get a palindrome (4162552614).

The spelling of 2121141402 in words is "two billion, one hundred twenty-one million, one hundred forty-one thousand, four hundred two".