1213450211250 has 60 divisors (see below), whose sum is σ = 3285376029078. Its totient is φ = 323586720000.

The previous prime is 1213450211221. The next prime is 1213450211273. The reversal of 1213450211250 is 521120543121.

It is a happy number.

1213450211250 is a `hidden beast` number, since 1 + 2 + 1 + 34 + 502 + 1 + 125 + 0 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 76559016249 + 1136891195001 = 276693^2 + 1066251^2 .

It is a super-2 number, since 2×1213450211250² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 53919871 + ... + 53942370.

Almost surely, 2^{1213450211250} is an apocalyptic number.

1213450211250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213450211250 is an abundant number, since it is smaller than the sum of its proper divisors (2071925817828).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213450211250 is a wasteful number, since it uses less digits than its factorization.

1213450211250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107862269 (or 107862251 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 1213450211250 its reverse (521120543121), we get a palindrome (1734570754371).

The spelling of 1213450211250 in words is "one trillion, two hundred thirteen billion, four hundred fifty million, two hundred eleven thousand, two hundred fifty".