29220770881 has 8 divisors (see below), whose sum is σ = 30363943680. Its totient is φ = 28086635472.

The previous prime is 29220770867. The next prime is 29220770951. The reversal of 29220770881 is 18807702292.

It is a happy number.

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 29220770881 - 2⁵ = 29220770849 is a prime.

It is a super-2 number, since 2×29220770881² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (29220770801) 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, 2252755 + ... + 2265688.

It is an arithmetic number, because the mean of its divisors is an integer number (3795492960).

Almost surely, 2^29220770881 is an apocalyptic number.

It is an amenable number.

29220770881 is a deficient number, since it is larger than the sum of its proper divisors (1143172799).

29220770881 is a wasteful number, since it uses less digits than its factorization.

29220770881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4518695.

The product of its (nonzero) digits is 225792, while the sum is 46.

The spelling of 29220770881 in words is "twenty-nine billion, two hundred twenty million, seven hundred seventy thousand, eight hundred eighty-one".