1213255102 has 16 divisors (see below), whose sum is σ = 1834739712. Its totient is φ = 601687800.

The previous prime is 1213255079. The next prime is 1213255103. The reversal of 1213255102 is 2015523121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213255103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 221683 + ... + 227089.

It is an arithmetic number, because the mean of its divisors is an integer number (114671232).

Almost surely, 2^1213255102 is an apocalyptic number.

1213255102 is a deficient number, since it is larger than the sum of its proper divisors (621484610).

1213255102 is a wasteful number, since it uses less digits than its factorization.

1213255102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6303.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1213255102 is about 34831.8116382137. The cubic root of 1213255102 is about 1066.5569304862.

Adding to 1213255102 its reverse (2015523121), we get a palindrome (3228778223).

The spelling of 1213255102 in words is "one billion, two hundred thirteen million, two hundred fifty-five thousand, one hundred two".