1121201002 has 4 divisors (see below), whose sum is σ = 1681801506. Its totient is φ = 560600500.

The previous prime is 1121200991. The next prime is 1121201023. The reversal of 1121201002 is 2001021211.

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., 975250441 + 145950561 = 31229^2 + 12081^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1121201002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280300249 + ... + 280300252.

Almost surely, 2^1121201002 is an apocalyptic number.

1121201002 is a deficient number, since it is larger than the sum of its proper divisors (560600504).

1121201002 is an equidigital number, since it uses as much as digits as its factorization.

1121201002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560600503.

The product of its (nonzero) digits is 8, while the sum is 10.

The square root of 1121201002 is about 33484.3396530378. The cubic root of 1121201002 is about 1038.8698898974.

Adding to 1121201002 its reverse (2001021211), we get a palindrome (3122222213).

The spelling of 1121201002 in words is "one billion, one hundred twenty-one million, two hundred one thousand, two".