29012201101 has 12 divisors (see below), whose sum is σ = 32181820020. Its totient is φ = 26127304320.

The previous prime is 29012201077. The next prime is 29012201143. The reversal of 29012201101 is 10110221092.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 18618602500 + 10393598601 = 136450^2 + 101949^2 .

It is not a de Polignac number, because 29012201101 - 2¹⁵ = 29012168333 is a prime.

It is a super-2 number, since 2×29012201101² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29012201191) 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, 2086606 + ... + 2100463.

It is an arithmetic number, because the mean of its divisors is an integer number (2681818335).

Almost surely, 2^29012201101 is an apocalyptic number.

It is an amenable number.

29012201101 is a deficient number, since it is larger than the sum of its proper divisors (3169618919).

29012201101 is a wasteful number, since it uses less digits than its factorization.

29012201101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4187136 (or 4187123 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 29012201101 its reverse (10110221092), we get a palindrome (39122422193).

The spelling of 29012201101 in words is "twenty-nine billion, twelve million, two hundred one thousand, one hundred one".