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1214422121 = 11191578021
BaseRepresentation
bin100100001100010…
…1001110001101001
310010122011000222002
41020120221301221
54441343001441
6320301140345
742044263163
oct11030516151
93118130862
101214422121
11573567350
1229a85a6b5
131647a3a93
14b7405933
1571938b9b
hex48629c69

1214422121 has 8 divisors (see below), whose sum is σ = 1331762688. Its totient is φ = 1098238000.

The previous prime is 1214422093. The next prime is 1214422141. The reversal of 1214422121 is 1212244121.

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 1214422121 - 214 = 1214405737 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1214422093 and 1214422102.

It is not an unprimeable number, because it can be changed into a prime (1214422141) 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 7 ways as a sum of consecutive naturals, for example, 286910 + ... + 291111.

It is an arithmetic number, because the mean of its divisors is an integer number (166470336).

Almost surely, 21214422121 is an apocalyptic number.

1214422121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1214422121 is a deficient number, since it is larger than the sum of its proper divisors (117340567).

1214422121 is a wasteful number, since it uses less digits than its factorization.

1214422121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 578223.

The product of its digits is 256, while the sum is 20.

The square root of 1214422121 is about 34848.5598124227. The cubic root of 1214422121 is about 1066.8987913549.

Adding to 1214422121 its reverse (1212244121), we get a palindrome (2426666242).

The spelling of 1214422121 in words is "one billion, two hundred fourteen million, four hundred twenty-two thousand, one hundred twenty-one".

Divisors: 1 11 191 2101 578021 6358231 110402011 1214422121