103221552 has 120 divisors (see below), whose sum is σ = 324034816. Its totient is φ = 27730944.

The previous prime is 103221529. The next prime is 103221593. The reversal of 103221552 is 255122301.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96573 + ... + 97635.

Almost surely, 2^103221552 is an apocalyptic number.

103221552 is a gapful number since it is divisible by the number (12) 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 103221552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162017408).

103221552 is an abundant number, since it is smaller than the sum of its proper divisors (220813264).

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

103221552 is a wasteful number, since it uses less digits than its factorization.

103221552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115 (or 1092 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 21.

The square root of 103221552 is about 10159.8007854485. The cubic root of 103221552 is about 469.0906697586.

Adding to 103221552 its reverse (255122301), we get a palindrome (358343853).

The spelling of 103221552 in words is "one hundred three million, two hundred twenty-one thousand, five hundred fifty-two".