1099129901001 has 64 divisors (see below), whose sum is σ = 1687463331840. Its totient is φ = 630213696000.

The previous prime is 1099129900993. The next prime is 1099129901053. The reversal of 1099129901001 is 1001099219901.

It is not a de Polignac number, because 1099129901001 - 2³ = 1099129900993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1099129908001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11025741 + ... + 11124981.

It is an arithmetic number, because the mean of its divisors is an integer number (26366614560).

Almost surely, 2^{1099129901001} is an apocalyptic number.

1099129901001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1099129901001 is a deficient number, since it is larger than the sum of its proper divisors (588333430839).

1099129901001 is a wasteful number, since it uses less digits than its factorization.

1099129901001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99518.

The product of its (nonzero) digits is 13122, while the sum is 42.

It can be divided in two parts, 10991 and 29901001, that added together give a palindrome (29911992).

The spelling of 1099129901001 in words is "one trillion, ninety-nine billion, one hundred twenty-nine million, nine hundred one thousand, one".