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122040121 = 719788499
BaseRepresentation
bin1110100011000…
…10111100111001
322111122021120111
413101202330321
5222220240441
620035424321
73011216050
oct721427471
9274567514
10122040121
1162985605
1234a550a1
131c38c6b8
14122cb397
15aaaa081
hex7462f39

122040121 has 8 divisors (see below), whose sum is σ = 140184000. Its totient is φ = 104073648.

The previous prime is 122040119. The next prime is 122040131. The reversal of 122040121 is 121040221.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122040121 - 21 = 122040119 is a prime.

It is a super-2 number, since 2×1220401212 = 29787582267389282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122040131) 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, 42871 + ... + 45628.

It is an arithmetic number, because the mean of its divisors is an integer number (17523000).

Almost surely, 2122040121 is an apocalyptic number.

It is an amenable number.

122040121 is a deficient number, since it is larger than the sum of its proper divisors (18143879).

122040121 is an equidigital number, since it uses as much as digits as its factorization.

122040121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88703.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 122040121 is about 11047.1770602267. The cubic root of 122040121 is about 496.0219284985.

Adding to 122040121 its reverse (121040221), we get a palindrome (243080342).

The spelling of 122040121 in words is "one hundred twenty-two million, forty thousand, one hundred twenty-one".

Divisors: 1 7 197 1379 88499 619493 17434303 122040121