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101222201110121 = 731378728844537
BaseRepresentation
bin10111000000111110100001…
…010101110010111001101001
3111021101202012020022212221222
4113000332201111302321221
5101231411031441010441
6555140500502111425
730215030335154000
oct2700764125627151
9437352166285858
10101222201110121
112a28610473a963
12b42965a41b575
13446329c1382b0
141add275aabc37
15ba804d5b1d4b
hex5c0fa1572e69

101222201110121 has 32 divisors (see below), whose sum is σ = 127285177286400. Its totient is φ = 79986129084288.

The previous prime is 101222201110081. The next prime is 101222201110127. The reversal of 101222201110121 is 121011102222101.

It is a de Polignac number, because none of the positive numbers 2k-101222201110121 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101222201110121.

It is not an unprimeable number, because it can be changed into a prime (101222201110127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10913036 + ... + 17931501.

It is an arithmetic number, because the mean of its divisors is an integer number (3977661790200).

Almost surely, 2101222201110121 is an apocalyptic number.

It is an amenable number.

101222201110121 is a deficient number, since it is larger than the sum of its proper divisors (26062976176279).

101222201110121 is an equidigital number, since it uses as much as digits as its factorization.

101222201110121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28845358 (or 28845344 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101222201110121 its reverse (121011102222101), we get a palindrome (222233303332222).

The spelling of 101222201110121 in words is "one hundred one trillion, two hundred twenty-two billion, two hundred one million, one hundred ten thousand, one hundred twenty-one".

Divisors: 1 7 13 49 91 343 637 787 4459 5509 10231 38563 71617 269941 501319 3509233 28844537 201911759 374978981 1413382313 2624852867 9893676191 18373970069 22700650619 128617790483 158904554333 295108458047 1112331880331 2065759206329 7786323162317 14460314444303 101222201110121