1001120212005 has 32 divisors (see below), whose sum is σ = 1614643200000. Its totient is φ = 529648402752.

The previous prime is 1001120211929. The next prime is 1001120212049. The reversal of 1001120212005 is 5002120211001.

It is not a de Polignac number, because 1001120212005 - 2⁷ = 1001120211877 is a prime.

It is a super-2 number, since 2×1001120212005² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14250556 + ... + 14320634.

It is an arithmetic number, because the mean of its divisors is an integer number (50457600000).

Almost surely, 2^{1001120212005} is an apocalyptic number.

1001120212005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1001120212005 is a deficient number, since it is larger than the sum of its proper divisors (613522987995).

1001120212005 is a wasteful number, since it uses less digits than its factorization.

1001120212005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77713.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 1001120212005 its reverse (5002120211001), we get a palindrome (6003240423006).

The spelling of 1001120212005 in words is "one trillion, one billion, one hundred twenty million, two hundred twelve thousand, five".