2141121045402 has 24 divisors (see below), whose sum is σ = 4752244273140. Its totient is φ = 696299526720.

The previous prime is 2141121045377. The next prime is 2141121045407. The reversal of 2141121045402 is 2045401211412.

2141121045402 is a `hidden beast` number, since 2 + 1 + 4 + 1 + 1 + 210 + 45 + 402 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2104237458801 + 36883586601 = 1450599^2 + 192051^2 .

It is not an unprimeable number, because it can be changed into a prime (2141121045407) 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, 1450623277 + ... + 1450624752.

Almost surely, 2^{2141121045402} is an apocalyptic number.

2141121045402 is an abundant number, since it is smaller than the sum of its proper divisors (2611123227738).

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

2141121045402 is a wasteful number, since it uses less digits than its factorization.

2141121045402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2901248078 (or 2901248075 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

Adding to 2141121045402 its reverse (2045401211412), we get a palindrome (4186522256814).

The spelling of 2141121045402 in words is "two trillion, one hundred forty-one billion, one hundred twenty-one million, forty-five thousand, four hundred two".