1211244002 has 8 divisors (see below), whose sum is σ = 1817231196. Its totient is φ = 605500272.

The previous prime is 1211243993. The next prime is 1211244031. The reversal of 1211244002 is 2004421121.

It can be written as a sum of positive squares in 2 ways, for example, as 1203465481 + 7778521 = 34691^2 + 2789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1211244002² = 2934224064761952008, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47873 + ... + 68660.

Almost surely, 2^1211244002 is an apocalyptic number.

1211244002 is a deficient number, since it is larger than the sum of its proper divisors (605987194).

1211244002 is a wasteful number, since it uses less digits than its factorization.

1211244002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121732.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1211244002 is about 34802.9309397930. The cubic root of 1211244002 is about 1065.9672938701.

Adding to 1211244002 its reverse (2004421121), we get a palindrome (3215665123).

The spelling of 1211244002 in words is "one billion, two hundred eleven million, two hundred forty-four thousand, two".