Search a number
-
+
1222202120120 = 235172105726827
BaseRepresentation
bin10001110010010000111…
…011000101011110111000
311022211201100220200010122
4101302100323011132320
5130011032220320440
62333245533032412
7154205210416142
oct21622073053670
94284640820118
101222202120120
114313732635a3
12178a55025708
138b33a286ca7
144322507dc92
1521bd3e417b5
hex11c90ec57b8

1222202120120 has 48 divisors (see below), whose sum is σ = 2921232257640. Its totient is φ = 460123146752.

The previous prime is 1222202120119. The next prime is 1222202120141. The reversal of 1222202120120 is 210212022221.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52851854 + ... + 52874973.

Almost surely, 21222202120120 is an apocalyptic number.

1222202120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222202120120 is an abundant number, since it is smaller than the sum of its proper divisors (1699030137520).

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

1222202120120 is a wasteful number, since it uses less digits than its factorization.

1222202120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105726872 (or 105726851 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 1222202120120 its reverse (210212022221), we get a palindrome (1432414142341).

The spelling of 1222202120120 in words is "one trillion, two hundred twenty-two billion, two hundred two million, one hundred twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 289 340 578 680 1156 1445 2312 2890 5780 11560 105726827 211453654 422907308 528634135 845814616 1057268270 1797356059 2114536540 3594712118 4229073080 7189424236 8986780295 14378848472 17973560590 30555053003 35947121180 61110106006 71894242360 122220212012 152775265015 244440424024 305550530030 611101060060 1222202120120