Search a number
-
+
122111102110 = 2531393906781
BaseRepresentation
bin111000110111001100…
…0111000110010011110
3102200012010120201011111
41301232120320302132
54000040420231420
6132032544412234
711552012146024
oct1615630706236
9380163521144
10122111102110
1147872596408
121b7ba91707a
13b69069160a
145ca5882714
15329a4b245a
hex1c6e638c9e

122111102110 has 16 divisors (see below), whose sum is σ = 226890306432. Its totient is φ = 47268813600.

The previous prime is 122111102089. The next prime is 122111102149. The reversal of 122111102110 is 11201111221.

It is a happy number.

It is a super-2 number, since 2×1221111021102 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196953081 + ... + 196953700.

It is an arithmetic number, because the mean of its divisors is an integer number (14180644152).

Almost surely, 2122111102110 is an apocalyptic number.

122111102110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

122111102110 is a deficient number, since it is larger than the sum of its proper divisors (104779204322).

122111102110 is a wasteful number, since it uses less digits than its factorization.

122111102110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393906819.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 122111102110 its reverse (11201111221), we get a palindrome (133312213331).

The spelling of 122111102110 in words is "one hundred twenty-two billion, one hundred eleven million, one hundred two thousand, one hundred ten".

Divisors: 1 2 5 10 31 62 155 310 393906781 787813562 1969533905 3939067810 12211110211 24422220422 61055551055 122111102110