121002111101002 has 8 divisors (see below), whose sum is σ = 181504364285700. Its totient is φ = 60500656339104.

The previous prime is 121002111100993. The next prime is 121002111101017. The reversal of 121002111101002 is 200101111200121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 114897797083521 + 6104314017481 = 10719039^2 + 2470691^2 .

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, 199226677 + ... + 199833112.

Almost surely, 2^{121002111101002} is an apocalyptic number.

121002111101002 is a deficient number, since it is larger than the sum of its proper divisors (60502253184698).

121002111101002 is a wasteful number, since it uses less digits than its factorization.

121002111101002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 399211400.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 121002111101002 its reverse (200101111200121), we get a palindrome (321103222301123).

The spelling of 121002111101002 in words is "one hundred twenty-one trillion, two billion, one hundred eleven million, one hundred one thousand, two".