101210506861 has 8 divisors (see below), whose sum is σ = 101632860000. Its totient is φ = 100788306000.

The previous prime is 101210506849. The next prime is 101210506867. The reversal of 101210506861 is 168605012101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 101210506861 - 2²⁹ = 100673635949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101210506867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1407930 + ... + 1478068.

It is an arithmetic number, because the mean of its divisors is an integer number (12704107500).

Almost surely, 2^101210506861 is an apocalyptic number.

It is an amenable number.

101210506861 is a deficient number, since it is larger than the sum of its proper divisors (422353139).

101210506861 is an equidigital number, since it uses as much as digits as its factorization.

101210506861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76139.

The product of its (nonzero) digits is 2880, while the sum is 31.

Adding to 101210506861 its reverse (168605012101), we get a palindrome (269815518962).

The spelling of 101210506861 in words is "one hundred one billion, two hundred ten million, five hundred six thousand, eight hundred sixty-one".