106250221 has 48 divisors (see below), whose sum is σ = 145248768. Its totient is φ = 75778560.

The previous prime is 106250201. The next prime is 106250267. The reversal of 106250221 is 122052601.

106250221 = T₃₆₅ + T₃₆₆ + ... + T₈₈₁.

It is not a de Polignac number, because 106250221 - 2¹¹ = 106248173 is a prime.

It is a super-2 number, since 2×106250221² = 22578218925097682, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106250201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 676675 + ... + 676831.

It is an arithmetic number, because the mean of its divisors is an integer number (3026016).

Almost surely, 2^106250221 is an apocalyptic number.

106250221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

106250221 is a deficient number, since it is larger than the sum of its proper divisors (38998547).

106250221 is a wasteful number, since it uses less digits than its factorization.

106250221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250 (or 239 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 106250221 is about 10307.7747841132. The cubic root of 106250221 is about 473.6344469790.

The spelling of 106250221 in words is "one hundred six million, two hundred fifty thousand, two hundred twenty-one".