1213020202 has 8 divisors (see below), whose sum is σ = 1819781316. Its totient is φ = 606426432.

The previous prime is 1213020191. The next prime is 1213020217. The reversal of 1213020202 is 2020203121.

It can be written as a sum of positive squares in 2 ways, for example, as 1207493001 + 5527201 = 34749^2 + 2351^2 .

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, 21793 + ... + 53860.

Almost surely, 2^1213020202 is an apocalyptic number.

1213020202 is a deficient number, since it is larger than the sum of its proper divisors (606761114).

1213020202 is an equidigital number, since it uses as much as digits as its factorization.

1213020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83672.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 1213020202 is about 34828.4395573503. The cubic root of 1213020202 is about 1066.4880935221.

Adding to 1213020202 its reverse (2020203121), we get a palindrome (3233223323).

The spelling of 1213020202 in words is "one billion, two hundred thirteen million, twenty thousand, two hundred two".