1201012101988 has 12 divisors (see below), whose sum is σ = 2103666381180. Its totient is φ = 599964564512.

The previous prime is 1201012101967. The next prime is 1201012102007. The reversal of 1201012101988 is 8891012101021.

It can be written as a sum of positive squares in 2 ways, for example, as 98927862784 + 1102084239204 = 314528^2 + 1049802^2 .

It is a super-2 number, since 2×1201012101988² (a number of 25 digits) contains 22 as substring.

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, 135366631 + ... + 135375502.

It is an arithmetic number, because the mean of its divisors is an integer number (175305531765).

Almost surely, 2^{1201012101988} is an apocalyptic number.

It is an amenable number.

1201012101988 is a deficient number, since it is larger than the sum of its proper divisors (902654279192).

1201012101988 is a wasteful number, since it uses less digits than its factorization.

1201012101988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270743246 (or 270743244 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 34.

The spelling of 1201012101988 in words is "one trillion, two hundred one billion, twelve million, one hundred one thousand, nine hundred eighty-eight".