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1122100231 = 74710333113
BaseRepresentation
bin100001011100001…
…1110010000000111
32220012102121010211
41002320132100013
54244224201411
6303202300251
736543460150
oct10270362007
92805377124
101122100231
1152643a56a
12273957687
1314b61b045
14a9052927
156879e221
hex42e1e407

1122100231 has 16 divisors (see below), whose sum is σ = 1322440704. Its totient is φ = 932169024.

The previous prime is 1122100201. The next prime is 1122100289. The reversal of 1122100231 is 1320012211.

It is a cyclic number.

It is not a de Polignac number, because 1122100231 - 217 = 1121969159 is a prime.

It is a super-2 number, since 2×11221002312 = 2518217856820506722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122100201) 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 15 ways as a sum of consecutive naturals, for example, 17331 + ... + 50443.

It is an arithmetic number, because the mean of its divisors is an integer number (82652544).

Almost surely, 21122100231 is an apocalyptic number.

1122100231 is a deficient number, since it is larger than the sum of its proper divisors (200340473).

1122100231 is a wasteful number, since it uses less digits than its factorization.

1122100231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33270.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1122100231 is about 33497.7645672066. The cubic root of 1122100231 is about 1039.1475481991.

Adding to 1122100231 its reverse (1320012211), we get a palindrome (2442112442).

The spelling of 1122100231 in words is "one billion, one hundred twenty-two million, one hundred thousand, two hundred thirty-one".