29220890550228 has 504 divisors, whose sum is σ = 86379738095616. Its totient is φ = 8631924537600.

The previous prime is 29220890550217. The next prime is 29220890550281. The reversal of 29220890550228 is 82205509802292.

29220890550228 is a `hidden beast` number, since 2 + 9 + 2 + 2 + 0 + 89 + 0 + 550 + 2 + 2 + 8 = 666.

29220890550228 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 1940161818 + ... + 1940176878.

Almost surely, 2^{29220890550228} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29220890550228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43189869047808).

29220890550228 is an abundant number, since it is smaller than the sum of its proper divisors (57158847545388).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

29220890550228 is a wasteful number, since it uses less digits than its factorization.

29220890550228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15267 (or 15237 counting only the distinct ones).

The product of its (nonzero) digits is 4147200, while the sum is 54.

The spelling of 29220890550228 in words is "twenty-nine trillion, two hundred twenty billion, eight hundred ninety million, five hundred fifty thousand, two hundred twenty-eight".