121112160616 has 32 divisors (see below), whose sum is σ = 232850665800. Its totient is φ = 59036221440.

The previous prime is 121112160601. The next prime is 121112160619. The reversal of 121112160616 is 616061211121.

It can be written as a sum of positive squares in 4 ways, for example, as 27971224516 + 93140936100 = 167246^2 + 305190^2 .

It is not an unprimeable number, because it can be changed into a prime (121112160619) 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, 1043001 + ... + 1153288.

Almost surely, 2^121112160616 is an apocalyptic number.

It is an amenable number.

121112160616 is a deficient number, since it is larger than the sum of its proper divisors (111738505184).

121112160616 is a wasteful number, since it uses less digits than its factorization.

121112160616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2196469 (or 2196465 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 28.

Adding to 121112160616 its reverse (616061211121), we get a palindrome (737173371737).

The spelling of 121112160616 in words is "one hundred twenty-one billion, one hundred twelve million, one hundred sixty thousand, six hundred sixteen".