29222121 has 8 divisors (see below), whose sum is σ = 40656960. Its totient is φ = 18634352.

The previous prime is 29222113. The next prime is 29222129. The reversal of 29222121 is 12122292.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (29222113) and next prime (29222129).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 29222121 - 2³ = 29222113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (29222129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 211686 + ... + 211823.

It is an arithmetic number, because the mean of its divisors is an integer number (5082120).

Almost surely, 2^29222121 is an apocalyptic number.

It is an amenable number.

29222121 is a deficient number, since it is larger than the sum of its proper divisors (11434839).

29222121 is a wasteful number, since it uses less digits than its factorization.

29222121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423535.

The product of its digits is 288, while the sum is 21.

The square root of 29222121 is about 5405.7488842898. The cubic root of 29222121 is about 308.0140861888.

The spelling of 29222121 in words is "twenty-nine million, two hundred twenty-two thousand, one hundred twenty-one".