29001120221 has 4 divisors (see below), whose sum is σ = 29350531392. Its totient is φ = 28651709052.

The previous prime is 29001120167. The next prime is 29001120223. The reversal of 29001120221 is 12202110092.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 29001120221 - 2⁶ = 29001120157 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 29001120193 and 29001120202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (29001120223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 174705461 + ... + 174705626.

It is an arithmetic number, because the mean of its divisors is an integer number (7337632848).

Almost surely, 2^29001120221 is an apocalyptic number.

It is an amenable number.

29001120221 is a deficient number, since it is larger than the sum of its proper divisors (349411171).

29001120221 is an equidigital number, since it uses as much as digits as its factorization.

29001120221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349411170.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 29001120221 in words is "twenty-nine billion, one million, one hundred twenty thousand, two hundred twenty-one".