1001099010501 has 12 divisors (see below), whose sum is σ = 1470540920160. Its totient is φ = 656087486760.

The previous prime is 1001099010437. The next prime is 1001099010557. The reversal of 1001099010501 is 1050109901001.

It is not a de Polignac number, because 1001099010501 - 2⁶ = 1001099010437 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001099090501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 942653905 + ... + 942654966.

It is an arithmetic number, because the mean of its divisors is an integer number (122545076680).

Almost surely, 2^{1001099010501} is an apocalyptic number.

It is an amenable number.

1001099010501 is a deficient number, since it is larger than the sum of its proper divisors (469441909659).

1001099010501 is a wasteful number, since it uses less digits than its factorization.

1001099010501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1885308936 (or 1885308933 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 27.

The spelling of 1001099010501 in words is "one trillion, one billion, ninety-nine million, ten thousand, five hundred one".