101229550 has 12 divisors (see below), whose sum is σ = 188287056. Its totient is φ = 40491800.

The previous prime is 101229547. The next prime is 101229559. The reversal of 101229550 is 55922101.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101229559) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1012246 + ... + 1012345.

It is an arithmetic number, because the mean of its divisors is an integer number (15690588).

Almost surely, 2^101229550 is an apocalyptic number.

101229550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101229550 is a deficient number, since it is larger than the sum of its proper divisors (87057506).

101229550 is a wasteful number, since it uses less digits than its factorization.

101229550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2024603 (or 2024598 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 25.

The square root of 101229550 is about 10061.2896787639. The cubic root of 101229550 is about 466.0534945680.

The spelling of 101229550 in words is "one hundred one million, two hundred twenty-nine thousand, five hundred fifty".