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1012122112122 = 232115111727839
BaseRepresentation
bin11101011101001110010…
…11011101000001111010
310120202110112022112011200
432232213023131001322
5113040311230041442
62052543521235030
7133060221001542
oct16564713350172
93522415275150
101012122112122
11360269601180
121441a5792a76
137459a816754
1436db6370322
151b4daaa834c
hexeba72dd07a

1012122112122 has 24 divisors (see below), whose sum is σ = 2392288629120. Its totient is φ = 306703670280.

The previous prime is 1012122112069. The next prime is 1012122112139. The reversal of 1012122112122 is 2212112212101.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1012122112095 and 1012122112104.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2555863722 + ... + 2555864117.

It is an arithmetic number, because the mean of its divisors is an integer number (99678692880).

Almost surely, 21012122112122 is an apocalyptic number.

1012122112122 is an abundant number, since it is smaller than the sum of its proper divisors (1380166516998).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1012122112122 is a wasteful number, since it uses less digits than its factorization.

1012122112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5111727858 (or 5111727855 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 1012122112122 its reverse (2212112212101), we get a palindrome (3224234324223).

The spelling of 1012122112122 in words is "one trillion, twelve billion, one hundred twenty-two million, one hundred twelve thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 11 18 22 33 66 99 198 5111727839 10223455678 15335183517 30670367034 46005550551 56229006229 92011101102 112458012458 168687018687 337374037374 506061056061 1012122112122