92221020 has 144 divisors (see below), whose sum is σ = 293293728. Its totient is φ = 23431680.

The previous prime is 92221009. The next prime is 92221021. The reversal of 92221020 is 2012229.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 92220984 and 92221002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (92221021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 406147 + ... + 406373.

It is an arithmetic number, because the mean of its divisors is an integer number (2036762).

Almost surely, 2^92221020 is an apocalyptic number.

92221020 is a gapful number since it is divisible by the number (90) 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 92221020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (146646864).

92221020 is an abundant number, since it is smaller than the sum of its proper divisors (201072708).

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

92221020 is a wasteful number, since it uses less digits than its factorization.

92221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340 (or 335 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 92221020 is about 9603.1775991075. The cubic root of 92221020 is about 451.7969628732.

Adding to 92221020 its reverse (2012229), we get a palindrome (94233249).

The spelling of 92221020 in words is "ninety-two million, two hundred twenty-one thousand, twenty".