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101220101200001 = 742388334113221
BaseRepresentation
bin10111000000111100100100…
…001011010001100010000001
3111021101112202212222101211002
4113000330210023101202001
5101231342231401400001
6555135512245501345
730214624316213030
oct2700744413214201
9437345685871732
10101220101200001
112a285227363353
12b429173111855
13446302607c324
141add116c46717
15ba7e7906646b
hex5c0f242d1881

101220101200001 has 8 divisors (see below), whose sum is σ = 115680391953984. Its totient is φ = 86759879520240.

The previous prime is 101220101199979. The next prime is 101220101200067. The reversal of 101220101200001 is 100002101022101.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-101220101200001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101220101205001) 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, 14089430 + ... + 20023791.

It is an arithmetic number, because the mean of its divisors is an integer number (14460048994248).

Almost surely, 2101220101200001 is an apocalyptic number.

It is an amenable number.

101220101200001 is a deficient number, since it is larger than the sum of its proper divisors (14460290753983).

101220101200001 is an equidigital number, since it uses as much as digits as its factorization.

101220101200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34537111.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 101220101200001 its reverse (100002101022101), we get a palindrome (201222202222102).

The spelling of 101220101200001 in words is "one hundred one trillion, two hundred twenty billion, one hundred one million, two hundred thousand, one".

Divisors: 1 7 423883 2967181 34113221 238792547 14460014457143 101220101200001