101210621560 has 128 divisors (see below), whose sum is σ = 240550871040. Its totient is φ = 38268172800.

The previous prime is 101210621527. The next prime is 101210621573. The reversal of 101210621560 is 65126012101.

It is a happy number.

101210621560 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 35374530 + ... + 35377390.

It is an arithmetic number, because the mean of its divisors is an integer number (1879303680).

Almost surely, 2^101210621560 is an apocalyptic number.

101210621560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101210621560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120275435520).

101210621560 is an abundant number, since it is smaller than the sum of its proper divisors (139340249480).

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

101210621560 is a wasteful number, since it uses less digits than its factorization.

101210621560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3557 (or 3553 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 25.

Adding to 101210621560 its reverse (65126012101), we get a palindrome (166336633661).

The spelling of 101210621560 in words is "one hundred one billion, two hundred ten million, six hundred twenty-one thousand, five hundred sixty".