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120001122 = 2332222243
BaseRepresentation
bin1110010011100…
…01001001100010
322100210200121000
413021301021202
5221210013442
615524012430
72654664333
oct711611142
9270720530
10120001122
116181268a
1234231116
131bb275a7
1411d1a28a
15a805d4c
hex7271262

120001122 has 16 divisors (see below), whose sum is σ = 266669280. Its totient is φ = 40000356.

The previous prime is 120001121. The next prime is 120001153. The reversal of 120001122 is 221100021.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (120001121) 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, 1111068 + ... + 1111175.

It is an arithmetic number, because the mean of its divisors is an integer number (16666830).

Almost surely, 2120001122 is an apocalyptic number.

120001122 is an abundant number, since it is smaller than the sum of its proper divisors (146668158).

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

120001122 is a wasteful number, since it uses less digits than its factorization.

120001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2222254 (or 2222248 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 120001122 is about 10954.5023620427. The cubic root of 120001122 is about 493.2439521335.

Adding to 120001122 its reverse (221100021), we get a palindrome (341101143).

The spelling of 120001122 in words is "one hundred twenty million, one thousand, one hundred twenty-two".

Divisors: 1 2 3 6 9 18 27 54 2222243 4444486 6666729 13333458 20000187 40000374 60000561 120001122