101020219452 has 36 divisors (see below), whose sum is σ = 255386707576. Its totient is φ = 33669444960.

The previous prime is 101020219439. The next prime is 101020219457. The reversal of 101020219452 is 254912020101.

101020219452 is a `hidden beast` number, since 1 + 0 + 1 + 0 + 202 + 1 + 9 + 452 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101020219457) 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 11 ways as a sum of consecutive naturals, for example, 153618 + ... + 475014.

Almost surely, 2^101020219452 is an apocalyptic number.

101020219452 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

101020219452 is an abundant number, since it is smaller than the sum of its proper divisors (154366488124).

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

101020219452 is a wasteful number, since it uses less digits than its factorization.

101020219452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330138 (or 330133 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

Adding to 101020219452 its reverse (254912020101), we get a palindrome (355932239553).

The spelling of 101020219452 in words is "one hundred one billion, twenty million, two hundred nineteen thousand, four hundred fifty-two".