29121100001 has 16 divisors (see below), whose sum is σ = 34338470400. Its totient is φ = 24179957568.

The previous prime is 29121099983. The next prime is 29121100003. The reversal of 29121100001 is 10000112192.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-29121100001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29121100003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 467486 + ... + 526103.

It is an arithmetic number, because the mean of its divisors is an integer number (2146154400).

Almost surely, 2^29121100001 is an apocalyptic number.

It is an amenable number.

29121100001 is a deficient number, since it is larger than the sum of its proper divisors (5217370399).

29121100001 is an equidigital number, since it uses as much as digits as its factorization.

29121100001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 993728.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 29121100001 its reverse (10000112192), we get a palindrome (39121212193).

The spelling of 29121100001 in words is "twenty-nine billion, one hundred twenty-one million, one hundred thousand, one".