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11422120121 = 79307470957
BaseRepresentation
bin10101010001100111…
…11011100010111001
31002111000201211011222
422220303323202321
5141343030320441
65125223401425
7553023263516
oct125063734271
932430654158
1011422120121
1149315419a5
1222692b3275
131100512379
147a4d9230d
1546cb71d4b
hex2a8cfb8b9

11422120121 has 8 divisors (see below), whose sum is σ = 11604405120. Its totient is φ = 11240777808.

The previous prime is 11422120109. The next prime is 11422120139. The reversal of 11422120121 is 12102122411.

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

It is a cyclic number.

It is not a de Polignac number, because 11422120121 - 226 = 11355011257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11422120121.

It is not an unprimeable number, because it can be changed into a prime (11422128121) by changing a digit.

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, 211226 + ... + 259731.

It is an arithmetic number, because the mean of its divisors is an integer number (1450550640).

Almost surely, 211422120121 is an apocalyptic number.

It is an amenable number.

11422120121 is a deficient number, since it is larger than the sum of its proper divisors (182284999).

11422120121 is an equidigital number, since it uses as much as digits as its factorization.

11422120121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471343.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11422120121 its reverse (12102122411), we get a palindrome (23524242532).

The spelling of 11422120121 in words is "eleven billion, four hundred twenty-two million, one hundred twenty thousand, one hundred twenty-one".

Divisors: 1 79 307 24253 470957 37205603 144583799 11422120121