1212021202 has 16 divisors (see below), whose sum is σ = 2168088192. Its totient is φ = 496853280.

The previous prime is 1212021169. The next prime is 1212021221. The reversal of 1212021202 is 2021202121.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1881699 + ... + 1882342.

It is an arithmetic number, because the mean of its divisors is an integer number (135505512).

Almost surely, 2^1212021202 is an apocalyptic number.

1212021202 is a deficient number, since it is larger than the sum of its proper divisors (956066990).

1212021202 is a wasteful number, since it uses less digits than its factorization.

1212021202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3764073.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 1212021202 is about 34814.0948754955. The cubic root of 1212021202 is about 1066.1952393117.

Adding to 1212021202 its reverse (2021202121), we get a palindrome (3233223323).

It can be divided in two parts, 121 and 2021202, that multiplied together give a palindrome (244565442).

The spelling of 1212021202 in words is "one billion, two hundred twelve million, twenty-one thousand, two hundred two".