121202011111112 has 8 divisors (see below), whose sum is σ = 227253770833350. Its totient is φ = 60601005555552.

The previous prime is 121202011111063. The next prime is 121202011111121. The reversal of 121202011111112 is 211111110202121.

It can be written as a sum of positive squares in only one way, i.e., 83078375890756 + 38123635220356 = 9114734^2 + 6174434^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7575125694437 + ... + 7575125694452.

Almost surely, 2^{121202011111112} is an apocalyptic number.

It is an amenable number.

121202011111112 is a deficient number, since it is larger than the sum of its proper divisors (106051759722238).

121202011111112 is a wasteful number, since it uses less digits than its factorization.

121202011111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15150251388895 (or 15150251388891 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 121202011111112 its reverse (211111110202121), we get a palindrome (332313121313233).

The spelling of 121202011111112 in words is "one hundred twenty-one trillion, two hundred two billion, eleven million, one hundred eleven thousand, one hundred twelve".