121345043522 has 16 divisors (see below), whose sum is σ = 191604268800. Its totient is φ = 57477181680.

The previous prime is 121345043497. The next prime is 121345043537. The reversal of 121345043522 is 225340543121.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1868879 + ... + 1932717.

It is an arithmetic number, because the mean of its divisors is an integer number (11975266800).

Almost surely, 2^121345043522 is an apocalyptic number.

121345043522 is a deficient number, since it is larger than the sum of its proper divisors (70259225278).

121345043522 is a wasteful number, since it uses less digits than its factorization.

121345043522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113881.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 121345043522 its reverse (225340543121), we get a palindrome (346685586643).

The spelling of 121345043522 in words is "one hundred twenty-one billion, three hundred forty-five million, forty-three thousand, five hundred twenty-two".