2121031580474 has 16 divisors (see below), whose sum is σ = 3183294729600. Its totient is φ = 1059933443184.

The previous prime is 2121031580471. The next prime is 2121031580531. The reversal of 2121031580474 is 4740851301212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2121031580471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54976739 + ... + 55015305.

It is an arithmetic number, because the mean of its divisors is an integer number (198955920600).

Almost surely, 2^{2121031580474} is an apocalyptic number.

2121031580474 is a deficient number, since it is larger than the sum of its proper divisors (1062263149126).

2121031580474 is a wasteful number, since it uses less digits than its factorization.

2121031580474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52957.

The product of its (nonzero) digits is 53760, while the sum is 38.

Adding to 2121031580474 its reverse (4740851301212), we get a palindrome (6861882881686).

The spelling of 2121031580474 in words is "two trillion, one hundred twenty-one billion, thirty-one million, five hundred eighty thousand, four hundred seventy-four".