1001121010 has 8 divisors (see below), whose sum is σ = 1802017836. Its totient is φ = 400448400.

The previous prime is 1001120999. The next prime is 1001121031. The reversal of 1001121010 is 101211001.

It can be written as a sum of positive squares in 2 ways, for example, as 864301201 + 136819809 = 29399^2 + 11697^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1001120984 and 1001121002.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50056041 + ... + 50056060.

Almost surely, 2^1001121010 is an apocalyptic number.

1001121010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1001121010 is a deficient number, since it is larger than the sum of its proper divisors (800896826).

1001121010 is a wasteful number, since it uses less digits than its factorization.

1001121010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100112108.

The product of its (nonzero) digits is 2, while the sum is 7.

The square root of 1001121010 is about 31640.4963614669. The cubic root of 1001121010 is about 1000.3735304576.

Adding to 1001121010 its reverse (101211001), we get a palindrome (1102332011).

The spelling of 1001121010 in words is "one billion, one million, one hundred twenty-one thousand, ten".