121001121002 has 4 divisors (see below), whose sum is σ = 181501681506. Its totient is φ = 60500560500.

The previous prime is 121001120971. The next prime is 121001121049. The reversal of 121001121002 is 200121100121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 105864986161 + 15136134841 = 325369^2 + 123029^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30250280249 + ... + 30250280252.

Almost surely, 2^121001121002 is an apocalyptic number.

121001121002 is a deficient number, since it is larger than the sum of its proper divisors (60500560504).

121001121002 is an equidigital number, since it uses as much as digits as its factorization.

121001121002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60500560503.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 121001121002 its reverse (200121100121), we get a palindrome (321122221123).

The spelling of 121001121002 in words is "one hundred twenty-one billion, one million, one hundred twenty-one thousand, two".