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122121214 = 2233185639
BaseRepresentation
bin1110100011101…
…10101111111110
322111210101210221
413101312233332
5222230334324
620041251554
73012004345
oct721665776
9274711727
10122121214
1162a30526
1234a93bba
131c3ba597
141230cb5c
15aac40e4
hex7476bfe

122121214 has 16 divisors (see below), whose sum is σ = 197314560. Its totient is φ = 56521080.

The previous prime is 122121203. The next prime is 122121239. The reversal of 122121214 is 412121221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41394 + ... + 44245.

It is an arithmetic number, because the mean of its divisors is an integer number (12332160).

Almost surely, 2122121214 is an apocalyptic number.

122121214 is a deficient number, since it is larger than the sum of its proper divisors (75193346).

122121214 is a wasteful number, since it uses less digits than its factorization.

122121214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85695.

The product of its digits is 64, while the sum is 16.

The square root of 122121214 is about 11050.8467548872. The cubic root of 122121214 is about 496.1317694260.

Adding to 122121214 its reverse (412121221), we get a palindrome (534242435).

The spelling of 122121214 in words is "one hundred twenty-two million, one hundred twenty-one thousand, two hundred fourteen".

Divisors: 1 2 23 31 46 62 713 1426 85639 171278 1969697 2654809 3939394 5309618 61060607 122121214