1121201001002 has 4 divisors (see below), whose sum is σ = 1681801501506. Its totient is φ = 560600500500.

The previous prime is 1121201000999. The next prime is 1121201001013. The reversal of 1121201001002 is 2001001021211.

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., 1015920869041 + 105280131961 = 1007929^2 + 324469^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280300250249 + ... + 280300250252.

Almost surely, 2^{1121201001002} is an apocalyptic number.

1121201001002 is a deficient number, since it is larger than the sum of its proper divisors (560600500504).

1121201001002 is an equidigital number, since it uses as much as digits as its factorization.

1121201001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 560600500503.

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

Adding to 1121201001002 its reverse (2001001021211), we get a palindrome (3122202022213).

The spelling of 1121201001002 in words is "one trillion, one hundred twenty-one billion, two hundred one million, one thousand, two".