12237771000 has 512 divisors, whose sum is σ = 49061376000. Its totient is φ = 2468505600.

The previous prime is 12237770999. The next prime is 12237771037. The reversal of 12237771000 is 17773221.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6278026 + ... + 6279974.

It is an arithmetic number, because the mean of its divisors is an integer number (95823000).

Almost surely, 2^12237771000 is an apocalyptic number.

12237771000 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 12237771000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24530688000).

12237771000 is an abundant number, since it is smaller than the sum of its proper divisors (36823605000).

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

12237771000 is a wasteful number, since it uses less digits than its factorization.

12237771000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016 (or 2002 counting only the distinct ones).

The product of its (nonzero) digits is 4116, while the sum is 30.

The spelling of 12237771000 in words is "twelve billion, two hundred thirty-seven million, seven hundred seventy-one thousand".