121112545210 has 8 divisors (see below), whose sum is σ = 218002581396. Its totient is φ = 48445018080.

The previous prime is 121112545201. The next prime is 121112545223. The reversal of 121112545210 is 12545211121.

It can be written as a sum of positive squares in 2 ways, for example, as 120233482009 + 879063201 = 346747^2 + 29649^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6055627251 + ... + 6055627270.

Almost surely, 2^121112545210 is an apocalyptic number.

121112545210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121112545210 is a deficient number, since it is larger than the sum of its proper divisors (96890036186).

121112545210 is a wasteful number, since it uses less digits than its factorization.

121112545210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12111254528.

The product of its (nonzero) digits is 800, while the sum is 25.

Adding to 121112545210 its reverse (12545211121), we get a palindrome (133657756331).

The spelling of 121112545210 in words is "one hundred twenty-one billion, one hundred twelve million, five hundred forty-five thousand, two hundred ten".