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122022212 = 22132346581
BaseRepresentation
bin1110100010111…
…10100101000100
322111121101000012
413101132211010
5222214202322
620035205352
73011112614
oct721364504
9274541005
10122022212
1162973104
1234a46858
131c3844c0
14122c4a44
15aaa4ae2
hex745e944

122022212 has 12 divisors (see below), whose sum is σ = 229965036. Its totient is φ = 56317920.

The previous prime is 122022211. The next prime is 122022221. The reversal of 122022212 is 212220221.

It can be written as a sum of positive squares in 2 ways, for example, as 58277956 + 63744256 = 7634^2 + 7984^2 .

It is not an unprimeable number, because it can be changed into a prime (122022211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1173239 + ... + 1173342.

It is an arithmetic number, because the mean of its divisors is an integer number (19163753).

Almost surely, 2122022212 is an apocalyptic number.

It is an amenable number.

122022212 is a deficient number, since it is larger than the sum of its proper divisors (107942824).

122022212 is a wasteful number, since it uses less digits than its factorization.

122022212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2346598 (or 2346596 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 122022212 is about 11046.3664614207. The cubic root of 122022212 is about 495.9976640976.

Adding to 122022212 its reverse (212220221), we get a palindrome (334242433).

It can be divided in two parts, 1220 and 22212, that added together give a palindrome (23432).

The spelling of 122022212 in words is "one hundred twenty-two million, twenty-two thousand, two hundred twelve".

Divisors: 1 2 4 13 26 52 2346581 4693162 9386324 30505553 61011106 122022212