101220102305 has 16 divisors (see below), whose sum is σ = 146981796480. Its totient is φ = 65325242112.

The previous prime is 101220102289. The next prime is 101220102307. The reversal of 101220102305 is 503201022101.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 101220102305 - 2⁴ = 101220102289 is a prime.

It is a super-2 number, since 2×101220102305² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (101220102307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85058315 + ... + 85059504.

It is an arithmetic number, because the mean of its divisors is an integer number (9186362280).

Almost surely, 2^101220102305 is an apocalyptic number.

It is an amenable number.

101220102305 is a deficient number, since it is larger than the sum of its proper divisors (45761694175).

101220102305 is a wasteful number, since it uses less digits than its factorization.

101220102305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170117848.

The product of its (nonzero) digits is 120, while the sum is 17.

Adding to 101220102305 its reverse (503201022101), we get a palindrome (604421124406).

The spelling of 101220102305 in words is "one hundred one billion, two hundred twenty million, one hundred two thousand, three hundred five".