1212021002 has 16 divisors (see below), whose sum is σ = 1847664000. Its totient is φ = 596188320.

The previous prime is 1212020987. The next prime is 1212021047. The reversal of 1212021002 is 2001202121.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30749 + ... + 58047.

It is an arithmetic number, because the mean of its divisors is an integer number (115479000).

Almost surely, 2^1212021002 is an apocalyptic number.

1212021002 is a deficient number, since it is larger than the sum of its proper divisors (635642998).

1212021002 is a wasteful number, since it uses less digits than its factorization.

1212021002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27661.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1212021002 is about 34814.0920030955. The cubic root of 1212021002 is about 1066.1951806661.

Adding to 1212021002 its reverse (2001202121), we get a palindrome (3213223123).

The spelling of 1212021002 in words is "one billion, two hundred twelve million, twenty-one thousand, two".