1213202000 has 80 divisors (see below), whose sum is σ = 3001956672. Its totient is φ = 473961600.

The previous prime is 1213201967. The next prime is 1213202033. The reversal of 1213202000 is 2023121.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1213201967) and next prime (1213202033).

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78947 + ... + 93053.

Almost surely, 2^1213202000 is an apocalyptic number.

1213202000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213202000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1500978336).

1213202000 is an abundant number, since it is smaller than the sum of its proper divisors (1788754672).

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

1213202000 is a wasteful number, since it uses less digits than its factorization.

1213202000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14173 (or 14157 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1213202000 is about 34831.0493669083. The cubic root of 1213202000 is about 1066.5413698311.

Adding to 1213202000 its reverse (2023121), we get a palindrome (1215225121).

The spelling of 1213202000 in words is "one billion, two hundred thirteen million, two hundred two thousand".