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111120220202021 = 234831313921827
BaseRepresentation
bin11001010001000000110001…
…010000001010010000100101
3112120102222201012111020110222
4121101000301100022100211
5104031043202332431041
61032155531402254125
732256112434235442
oct3121006120122045
9476388635436428
10111120220202021
1132451903451248
1210567a14ab7345
134a007902629c4
141d62366a509c9
15cca75a42974b
hex65103140a425

111120220202021 has 4 divisors (see below), whose sum is σ = 115951534123872. Its totient is φ = 106288906280172.

The previous prime is 111120220201973. The next prime is 111120220202039. The reversal of 111120220202021 is 120202022021111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-111120220202021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111120220202521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2415656960891 + ... + 2415656960936.

It is an arithmetic number, because the mean of its divisors is an integer number (28987883530968).

Almost surely, 2111120220202021 is an apocalyptic number.

It is an amenable number.

111120220202021 is a deficient number, since it is larger than the sum of its proper divisors (4831313921851).

111120220202021 is an equidigital number, since it uses as much as digits as its factorization.

111120220202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4831313921850.

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

Adding to 111120220202021 its reverse (120202022021111), we get a palindrome (231322242223132).

The spelling of 111120220202021 in words is "one hundred eleven trillion, one hundred twenty billion, two hundred twenty million, two hundred two thousand, twenty-one".

Divisors: 1 23 4831313921827 111120220202021