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112100202021 = 3237946344417
BaseRepresentation
bin110100001100110110…
…0010101011000100101
3101201100110022021221010
41220121230111120211
53314040122431041
6123255332212433
711045642665263
oct1503154253045
9351313267833
10112100202021
11435a5706a65
121988616a119
13a7566589b2
1455d60c3433
152db169ea16
hex1a19b15625

112100202021 has 32 divisors (see below), whose sum is σ = 158284431360. Its totient is φ = 70425298944.

The previous prime is 112100202017. The next prime is 112100202059. The reversal of 112100202021 is 120202001211.

It is not a de Polignac number, because 112100202021 - 22 = 112100202017 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112100201988 and 112100202006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112100202121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2501605 + ... + 2546021.

It is an arithmetic number, because the mean of its divisors is an integer number (4946388480).

Almost surely, 2112100202021 is an apocalyptic number.

It is an amenable number.

112100202021 is a deficient number, since it is larger than the sum of its proper divisors (46184229339).

112100202021 is a wasteful number, since it uses less digits than its factorization.

112100202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44985.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 112100202021 its reverse (120202001211), we get a palindrome (232302203232).

The spelling of 112100202021 in words is "one hundred twelve billion, one hundred million, two hundred two thousand, twenty-one".

Divisors: 1 3 23 69 79 237 463 1389 1817 5451 10649 31947 36577 44417 109731 133251 841271 1021591 2523813 3064773 3508943 10526829 20565071 61695213 80705689 242117067 472996633 1418989899 1624640609 4873921827 37366734007 112100202021