1212220202 has 8 divisors (see below), whose sum is σ = 1826271300. Its totient is φ = 603463104.

The previous prime is 1212220199. The next prime is 1212220211. The reversal of 1212220202 is 2020222121.

It can be written as a sum of positive squares in 2 ways, for example, as 1146431881 + 65788321 = 33859^2 + 8111^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1322927 + ... + 1323842.

Almost surely, 2^1212220202 is an apocalyptic number.

1212220202 is a deficient number, since it is larger than the sum of its proper divisors (614051098).

1212220202 is a wasteful number, since it uses less digits than its factorization.

1212220202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2647000.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1212220202 is about 34816.9527960159. The cubic root of 1212220202 is about 1066.2535884674.

Adding to 1212220202 its reverse (2020222121), we get a palindrome (3232442323).

The spelling of 1212220202 in words is "one billion, two hundred twelve million, two hundred twenty thousand, two hundred two".