101220452 has 24 divisors (see below), whose sum is σ = 182952000. Its totient is φ = 48970656.

The previous prime is 101220439. The next prime is 101220463. The reversal of 101220452 is 254022101.

It is a self number, because there is not a number n which added to its sum of digits gives 101220452.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16049 + ... + 21447.

It is an arithmetic number, because the mean of its divisors is an integer number (7623000).

Almost surely, 2^101220452 is an apocalyptic number.

It is an amenable number.

101220452 is a deficient number, since it is larger than the sum of its proper divisors (81731548).

101220452 is a wasteful number, since it uses less digits than its factorization.

101220452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5555 (or 5553 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 101220452 is about 10060.8375396882. The cubic root of 101220452 is about 466.0395319727.

Adding to 101220452 its reverse (254022101), we get a palindrome (355242553).

The spelling of 101220452 in words is "one hundred one million, two hundred twenty thousand, four hundred fifty-two".