1201001002 has 4 divisors (see below), whose sum is σ = 1801501506. Its totient is φ = 600500500.

The previous prime is 1201000967. The next prime is 1201001003. The reversal of 1201001002 is 2001001021.

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., 604127241 + 596873761 = 24579^2 + 24431^2 .

It is not an unprimeable number, because it can be changed into a prime (1201001003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300250249 + ... + 300250252.

Almost surely, 2^1201001002 is an apocalyptic number.

1201001002 is a deficient number, since it is larger than the sum of its proper divisors (600500504).

1201001002 is an equidigital number, since it uses as much as digits as its factorization.

1201001002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600500503.

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1201001002 is about 34655.4613589258. The cubic root of 1201001002 is about 1062.9539657702.

Adding to 1201001002 its reverse (2001001021), we get a palindrome (3202002023).

The spelling of 1201001002 in words is "one billion, two hundred one million, one thousand, two".