29021112061 has 4 divisors (see below), whose sum is σ = 29025288124. Its totient is φ = 29016936000.

The previous prime is 29021112053. The next prime is 29021112091. The reversal of 29021112061 is 16021112092.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11450284036 + 17570828025 = 107006^2 + 132555^2 .

It is a cyclic number.

It is not a de Polignac number, because 29021112061 - 2³ = 29021112053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29021112091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2077590 + ... + 2091511.

It is an arithmetic number, because the mean of its divisors is an integer number (7256322031).

Almost surely, 2^29021112061 is an apocalyptic number.

It is an amenable number.

29021112061 is a deficient number, since it is larger than the sum of its proper divisors (4176063).

29021112061 is an equidigital number, since it uses as much as digits as its factorization.

29021112061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4176062.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 29021112061 in words is "twenty-nine billion, twenty-one million, one hundred twelve thousand, sixty-one".