101821652252 has 12 divisors (see below), whose sum is σ = 188669532240. Its totient is φ = 47916071616.

The previous prime is 101821652189. The next prime is 101821652267. The reversal of 101821652252 is 252256128101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 748688552 + ... + 748688687.

It is an arithmetic number, because the mean of its divisors is an integer number (15722461020).

Almost surely, 2^101821652252 is an apocalyptic number.

It is an amenable number.

101821652252 is a deficient number, since it is larger than the sum of its proper divisors (86847879988).

101821652252 is a wasteful number, since it uses less digits than its factorization.

101821652252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497377260 (or 1497377258 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 35.

The spelling of 101821652252 in words is "one hundred one billion, eight hundred twenty-one million, six hundred fifty-two thousand, two hundred fifty-two".