29102090220 has 288 divisors, whose sum is σ = 107209484928. Its totient is φ = 6237904896.

The previous prime is 29102090197. The next prime is 29102090257. The reversal of 29102090220 is 2209020192.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6273742 + ... + 6278378.

It is an arithmetic number, because the mean of its divisors is an integer number (372255156).

Almost surely, 2^29102090220 is an apocalyptic number.

29102090220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 29102090220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53604742464).

29102090220 is an abundant number, since it is smaller than the sum of its proper divisors (78107394708).

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

29102090220 is a wasteful number, since it uses less digits than its factorization.

29102090220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4969 (or 4964 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 29102090220 in words is "twenty-nine billion, one hundred two million, ninety thousand, two hundred twenty".