1213201022 has 32 divisors (see below), whose sum is σ = 2174519520. Its totient is φ = 501114880.

The previous prime is 1213201021. The next prime is 1213201037. The reversal of 1213201022 is 2201023121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1213200988 and 1213201006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213201021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45083 + ... + 66774.

It is an arithmetic number, because the mean of its divisors is an integer number (67953735).

Almost surely, 2^1213201022 is an apocalyptic number.

1213201022 is a deficient number, since it is larger than the sum of its proper divisors (961318498).

1213201022 is a wasteful number, since it uses less digits than its factorization.

1213201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111916.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1213201022 is about 34831.0353277074. The cubic root of 1213201022 is about 1066.5410832403.

Adding to 1213201022 its reverse (2201023121), we get a palindrome (3414224143).

The spelling of 1213201022 in words is "one billion, two hundred thirteen million, two hundred one thousand, twenty-two".