7121441000 has 32 divisors (see below), whose sum is σ = 16664174280. Its totient is φ = 2848576000.

The previous prime is 7121440979. The next prime is 7121441021. The reversal of 7121441000 is 1441217.

It is an interprime number because it is at equal distance from previous prime (7121440979) and next prime (7121441021).

It can be written as a sum of positive squares in 4 ways, for example, as 1692993316 + 5428447684 = 41146^2 + 73678^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3559721 + ... + 3561720.

Almost surely, 2^7121441000 is an apocalyptic number.

It is an amenable number.

7121441000 is an abundant number, since it is smaller than the sum of its proper divisors (9542733280).

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

7121441000 is a wasteful number, since it uses less digits than its factorization.

7121441000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7121462 (or 7121448 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 7121441000 is about 84388.6307508304. The cubic root of 7121441000 is about 1923.9301189315.

Adding to 7121441000 its reverse (1441217), we get a palindrome (7122882217).

The spelling of 7121441000 in words is "seven billion, one hundred twenty-one million, four hundred forty-one thousand".